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  1. SPAVONE M, IODICE E, CALVI R, BETTONI D, GALLETTA G., LONGO G, MAZZEI P, MINERVINI G. (2009). Revisiting the formation History of the minor-axis dust lane galaxy NGC1947. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. vol. 393, pp. 317-328 ISSN: 0035-8711.
  2. CASASOLA V, COMBES F, BETTONI D, POHLEN M, GALLETTA G., TENAGLIA F. (2008). Are truncated stellar disks linked to the molecular gas density?. ASTROPHYSICS AND SPACE SCIENCE. vol. 313, pp. 0 ISSN: 0004-640X. In digital version only - preview in astro-ph/0702018 (2007).
  3. GALLETTA G. (2008). Cosmos - viaggio alla scoperta dell'universo. (pp. 1-137). ISBN: 978-88-901411-7-4. MONTEBELLUNA (TV): Museo di St. naturale e Archeol. di Montebelluna (ITALY). Volume didattico connesso con la mostra per l'Anno Internazionale dell'Astronomia.
  4. BETTONI D, MARINO A, BUSON L. M, CHIOSI C, GALLETTA G., RAMPAZZO R, TANTALO R, RICH M. (2008). Tracing Galaxy Evolution in the Field: the UV Emission in Shell Galaxies Mapped by GALEX. In: Mapping the Galaxy and Nearby Galaxies, Astrophysics and Space Science Proceedings. (pp. 311). ISBN/ISSN: 978-0-387-72767-7. : Springer Science+Business Media (NETHERLANDS).
  5. CASASOLA V, COMBES F, GALLETTA G., BETTONI D. (2008). Molecular Gas and Star Formation in M81. In: Pathways Through an Eclectic Universe, J. H. Knapen, T. J. Mahoney, and A. Vazdekis (Eds.), ASP Conf. Ser. (vol. 390, pp. 170-171).
  6. MARINO A, RAMPAZZO R, TANTALO R, BETTONI D, BUSON L. M, CHIOSI C, GALLETTA G. (2008). The GALEX UV emission in shell galaxies. In: Formation and evolution of galaxies disks J.G. Funes, S.J., and E. M. Corsini(Eds.), ASP Conf. Ser., 2008. (vol. 396, pp. 279-283).
  7. CASASOLA V, COMBES F, BETTONI D, GALLETTA G. (2007). Molecular clouds in the center of M81. ASTRONOMY & ASTROPHYSICS. vol. 473, pp. 771-781 ISSN: 0004-6361.
  8. GALLETTA G., CASASOLA V, PIOVAN L, MERLIN E, BETTONI D. (2007). Relations between interstellar medium tracers in galaxies. ASTRONOMY & ASTROPHYSICS. vol. 462, pp. 495-506 ISSN: 0004-6361.
  9. GALLETTA G., D'ALESSANDRO M, BERTOLONI G, FANTI G, DAINESE E, PELIZZO M, FERRI F, PAVARIN D, BETTANINI C, BIANCHINI G, DEBEI S. (2007). LISA: Mars and the limits of life. MEMORIE DELLA SOCIETÀ ASTRONOMICA ITALIANA (on line). vol. 78, pp. 608-611 ISSN: 1824-016X.
  10. RAMPAZZO R, MARINO A, TANTALO R, BETTONI D, BUSON L. M, CHIOSI C, GALLETTA G., GRUEZTBAUCH R, RICH R. M. (2007). The GALEX UV emission in shell galaxies: tracing galaxy "rejuvenation" episodes. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. vol. 381, pp. 245-262 ISSN: 0035-8711.
  11. BUSON L. M, BETTONI D, MARINO A, CHIOSI C, GALLETTA G., RAMPAZZO R, TANTALO R, RICH R.M. (2007). Insights About Induced SFR in the Shell Systems of Early-Type Galaxies from UV (GALEX). In: Galaxy Evolution Across the Hubble Time, Edited by F. Combes and J. Palous,. Galaxy Evolution Across the Hubble Time, Edited by F. Combes and J. Palous, IAU Symposium 235. Prague, Czech Republic. 14-17 August, 2006. (vol. 235, pp. 305). CAMBRIDGE: Cambridge University Press (UNITED KINGDOM).
  12. CASASOLA V, COMBES F, GALLETTA G., BETTONI D. (2007). Molecular gas and star formation in M81. In: Pathways through an eclectic Universe, J. H. Knapen, T. J. Mahoney, and A. Vazdekis (Eds.), ASP Conf. Ser., 2007.
  13. CASASOLA V, PIOVAN L, GALLETTA G., BETTONI D, MERLIN E. (2007). Study of ISM tracers in galaxies. In: From Stars to Galaxies: Building the Pieces to Build Up the Universe", Vallenari et al. eds.,. From Stars to Galaxies: Building the Pieces to Build Up the Universe; ASP Conf. Series. Venezia. (vol. 374, pp. 491-492). : (UNITED STATES).
  14. GALLETTA G., FERRI F, FANTI G, D'ALESSANDRO M, BERTOLONI, G, PAVARIN, D, BETTANINI C, COZZA P, PRETTO P, BIANCHINI G, DEBEI S. (2006). S.A.M., the Italian Martian simulation chamber. ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE. vol. 36, pp. 625-627 ISSN: 0169-6149. .
  15. GALLETTA G., RODIGHIERO G, BETTONI D, MOLES M, VARELA J. (2006). Isolated galaxies: residual of primordial building blocks?. ASTRONOMY & ASTROPHYSICS. vol. 456, pp. 91-95 ISSN: 0004-6361.
  16. GALLETTA G., SERGI V. (2005). Astrobiologia: le frontiere della vita. (pp. 1-313). ISBN: 88-203-3424-0. MILANO: Hoepli (ITALY). (12 capitoli).
  17. VARELA J, MOLES M, MARQUEZ I, GALLETTA G., MASEGOSA J, BETTONI D. (2005). Properties of isolated disk galaxies. VizieR On-line Data Catalog: J/A+A/420/873. 11/2005. Catalogue on line - Centre Donnée Stellaires (Strasbourg).
  18. J. VARELA, M. MOLES, I. MARQUEZ, GALLETTA G., J. MASEGOSA, D. BETTONI. (2004). Properties of Isolated Disk Galaxies. ASTRONOMY & ASTROPHYSICS. vol. 470, pp. 873-879 ISSN: 0004-6361.
  19. V. CASASOLA, D. BETTONI, GALLETTA G. (2004). The gas content of peculiar galaxies: strongly interacting systems. ASTRONOMY & ASTROPHYSICS. vol. 422, pp. 941-950 ISSN: 0004-6361.
  20. J. VARELA, M. MOLES, I. MARQUEZ, GALLETTA G., J. MASEGOSA, D. BETTONI. (2004). The properties of isolated spiral galaxies. in: The many scales of the Universe - JENAM 2004, ed. J. C. Del Toro Iniesta, Kluwer.
  21. V. CASASOLA, D. BETTONI, GALLETTA G. (2004). The gas content of peculiar galaxies: strongly interacting systems. in: The many scales of the Universe - JENAM 2004, ed. J. C. Del Toro Iniesta, Kluwer.
  22. CASASOLA V., BETTONI D., GALLETTA G. (2004). Gas content in 1038 interacting galaxies. VizieR On-line Data Catalog: J/A+A/422/941. Catalogue on line - Centre Donnée Stellaires (Strasbourg).
  23. BETTONI D, GALLETTA G., GARCIA BURILLO S. (2003). A new catalogue of ISM content of normal galaxies. ASTRONOMY & ASTROPHYSICS. vol. 405, pp. 5-14 ISSN: 0004-6361.
  24. MARQUEZ I., MASEGOSA J., MOLES M., VARELA J., BETTONI D., GALLETTA G. (2003). Isolated and mildly interacting spiral galaxies: rotation curves and metallicity. ASTROPHYSICS AND SPACE SCIENCE. vol. 284, pp. 711-714 ISSN: 0004-640X.
  25. D. BETTONI, S. GARCIA-BURILLO, GALLETTA G., V. CASASOLA. (2003). Gas content in galaxies: peculiar vs. normal. in: Star and Structure Formation: From First Light to the Milky Way. AUGUST 18 - 22, 2003. ASTROPHYSICS CONFERENCE, ETH ZURICH, SWITZERLAND.
  26. BETTONI D., GALLETTA G., GARCIABURILLO S. (2003). Catalogue of ISM content of normal galaxies. VizieR On-line Data Catalog: J/A+A/405/5. (pp. 0). Catalogue on line - Centre Donnée Stellaires (Strasbourg).
  27. MARQUEZ I., MASEGOSA J., MOLES M., VARELA J., BETTONI D., GALLETTA G. (2002). Rotation curves and metallicity gradients from HII regions in spiral galaxies. ASTRONOMY & ASTROPHYSICS. vol. 392, pp. 389-407 ISSN: 0004-6361.
  28. MARQUEZ I., MASEGOSA J., MOLES M., VARELA A. M., BETTONI D., GALLETTA G. (2002). H{alpha} in HII regions in spiral galaxies. VizieR On-line Data Catalog: J/A+A/393/389. (pp. 0). Catalogue on line - Centre Donnée Stellaires (Strasbourg).
  29. BETTONI D., GALLETTA G. (2001). Radial velocities of giant M stars near the Ecliptic. ASTRONOMY & ASTROPHYSICS. vol. 368, pp. 593-594 ISSN: 0004-6361.
  30. BETTONI D., GALLETTA G., GARCIA BURILLO S., RODRIGUEZ FRANCO A. (2001). The gas content of peculiar galaxies: counterrotators and polar rings. ASTRONOMY & ASTROPHYSICS. vol. 374, pp. 421-434 ISSN: 0004-6361.
  31. BETTONI D., GALLETTA G., PRADA F. (2001). The visible environment of galaxies with counterrotation. ASTRONOMY & ASTROPHYSICS. vol. 374, pp. 83-91 ISSN: 0004-6361.
  32. BETTONI D., GALLETTA G. (2001). Stellar kinematical of two polar ring spirals. Galaxy Disks and Disk Galaxies, Astron. Society of Pacific Conference Series. (vol. 230, pp. 433-434).
  33. BETTONI D., GALLETTA G., MOLES M., VARELA J., MARQUES I., MASEGOSA J. (2001). Kinematical properties of a sample of isolated disk galaxies. Galaxy Disks and Disk Galaxies, Astron. Society of Pacific Conference Series. (vol. 230, pp. 271-272).
  34. GALLETTA G., PIGNATELLI E. (2001). Anatomy of Giant Spiral galaxies. Galaxy Disks and Disk Galaxies, Astron. Society of Pacific Conference Series. (vol. 230, pp. 563-565).
  35. GUARISE G., GALLETTA G., SECCO L. (2001). The Cut-off Radius and the Scale Length Induced by the Dark Matter Halo. Joint European and National Meeting 2001 of the European Astronomical Soci. 10-15 september 2001. (vol. 18, pp. 202).
  36. V. SERGI, L. CELOTTI, GALLETTA G., M. TURATTO. (2001). Nearby supernova explosions and radiation effects on the Earth's environment. ESA Special Publications. (vol. 496, pp. 409-412).
  37. BETTONI D., GALLETTA G., PRADA F. (2000). The Visible Environment of Gas Accreting Galaxies. Dynamics of Galaxies: from the Early Universe to the Present, ASP Conf. Series. (vol. 197, pp. 125).
  38. BETTONI D., GARCIA-BURILLO S., RODRIGUEZ-FRANCO A., GALLETTA G. (2000). Evolution of Gas Accreting Galaxies: Detection of Molecular Gas. Dynamics of Galaxies: from the Early Universe to the Present, ASP Conf. Series. (vol. 197, pp. 129).
  39. CAPPELLARO E., TURATTO M., PIZZELLA A., CORSINI E.M., GALLETTA G. (2000). Supernova 2000C in NGC 2415. International Astronomical Union - IAU Circular. (vol. N. 7352, pp. 1).
  40. TURATTO M., GALLETTA G., CAPPELLARO E. (2000). Supernova 2000E in NGC 6951. International Astronomical Union - IAU Circular. (vol. n. 7351, pp. 2).
  41. PIGNATELLI, E., GALLETTA G. (1999). Multi-component models for disk galaxies. I. Stellar rotation and anisotropy. ASTRONOMY & ASTROPHYSICS. vol. 349, pp. 369-380 ISSN: 0004-6361.
  42. BETTONI D., GALLETTA G. (1997). A survey of the stellar rotation in barred galaxies. ASTRONOMY & ASTROPHYSICS. vol. 124, pp. 61-74 ISSN: 0004-6361.
  43. BROCCA C., BETTONI D., GALLETTA G. (1997). The visible environment of polar ring galaxies. ASTRONOMY & ASTROPHYSICS. vol. 326, pp. 907-914 ISSN: 0004-6361.
  44. GALLETTA G., SAGE L.J., SPARKE L.S. (1997). Molecular gas in polar-ring galaxies. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. vol. 284, pp. 773-784 ISSN: 0035-8711.
  45. PIGNATELLI E, GALLETTA G. (1997). Dynamical models of S0 and Sa galaxies. Dark and Visible Matter in Galaxies; Astron. Society of Pacific Conf. Series. (vol. 117, pp. 136).
  46. BETTONI D., GALLETTA G. (1997). A survey of the stellar rotation in barred galaxies. VizieR On-line Data Catalog: J/A+AS/124/61. Catalogue on line - Centre Donnée Stellaires (Strasbourg).
  47. BETTONI D., FASANO G., GALLETTA G. (1996). Photometrical Mapping in Barred Galaxies: Analysis of the Different Components. Barred galaxies. Astronomical Society of the Pacific Conference Series. (vol. 91, pp. 97-98).
  48. GALLETTA G. (1996). Counterrotation and Barred Galaxies. Barred galaxies. Astronomical Society of the Pacific Conference Series. (vol. 91, pp. 429-439).
  49. GALLETTA G., TOMADINI L. (1996). Tethys and Nemesis: astronomical problems. Testing an astronomical explanation of mass extinctions. Shallow Tethys 4 - Supplemento Annali Musei Civici di Rovereto. 8-11 september 1994. (vol. 11, pp. 7-18).
  50. CIRI R., BETTONI D., GALLETTA G. (1995). A Massive Counter-Rotating Gas Disk in a Spiral Galaxy, nature. NATURE. vol. 375, pp. 661 ISSN: 0028-0836.
  51. BETTONI D., GALLETTA G. (1994). Study of NGC 4442: A link between bars and boxy bulges. ASTRONOMY & ASTROPHYSICS. vol. 281, pp. 1-6 ISSN: 0004-6361.
  52. SAGE L.J., GALLETTA G. (1994). Counter-rotating molecular gas in NGC 4546. THE ASTRONOMICAL JOURNAL. vol. 108, pp. 1633-1637 ISSN: 0004-6256.
  53. SAVOLDINI M., GALLETTA G. (1994). CO depletion in the protoplanetary disk of Beta Pictoris. ASTRONOMY & ASTROPHYSICS. vol. 285, pp. 467-468 ISSN: 0004-6361.
  54. ARNABOLDI M., GALLETTA G. (1993). Kinematical models of warped disks. ASTRONOMY & ASTROPHYSICS. vol. 268, pp. 411-417 ISSN: 0004-6361.
  55. BETTONI D., GALLETTA G., SAGE L. (1993). Detection of filaments of ionized gas in NGC 4684. ASTRONOMY & ASTROPHYSICS. vol. 280, pp. 121-127 ISSN: 0004-6361.
  56. SAGE L.J., GALLETTA G. (1993). Evolution in Dust Lane Ellipticals: Detection of Accreted Molecular Gas. ASTROPHYSICAL JOURNAL. vol. 419, pp. 544-560 ISSN: 0004-637X.
  57. FERETTI L., BETTONI D., GALLETTA G., GIOVANNINI G. (1993). Radio Emission of Galaxies with Kinematical Evidence of Merger. Structure, Dynamics and Chemical Evolution of Elliptical Galaxies. 25-30 May, 1992. (pp. 703). Proceedings of an ESO/EIPC Workshop, Marciana Marina, Isola d'Elba.
  58. BERTOLA F., GALLETTA G., ZEILINGER W.W. (1992). The Minor-Axis Dust Lane Elliptical NGC1947. ASTRONOMY & ASTROPHYSICS. vol. 254, pp. 89-92 ISSN: 0004-6361.
  59. MAGRELLI G., BETTONI D., GALLETTA G. (1992). Face-on disc galaxies. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. vol. 256, pp. 500-514 ISSN: 0035-8711.
  60. SAGE L. J., GALLETTA G. (1992). Dynamically Decoupled Gas and Stars in Galaxies. American Astronomical Society, 181st AAS Meeting. (vol. 24, pp. 1123).
  61. BETTONI D., FASANO G., GALLETTA G. (1991). Erratum: "NGC 2217, A Case of Apparent Counterrotation". THE ASTRONOMICAL JOURNAL. vol. 101, pp. 1089 ISSN: 0004-6256.
  62. BETTONI D., GALLETTA G., OOSTERLOO T. (1991). Stellar and gas kinematics of NGC 4546, the double-spin SBO. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. vol. 248, pp. 544-554 ISSN: 0035-8711.
  63. BUSON L., GALLETTA G., SAGLIA R. P., ZEILINGER W. W. (1991). Supermassive disk galaxies. THE MESSENGER. vol. 63, pp. 50-52 ISSN: 0722-6691.
  64. GALLETTA G. (1991). WARPS in S0S - Observations Versus Theories. WARPED DISKS AND INCLINED RINGS AROUND GALAXIES. (pp. 207-212).
  65. GALLETTA G., BETTONI D. (1991). Dynamics and Evolution of Acquired Gaseous Discs. DYNAMICS OF DISC GALAXIES: VARBERG CASTLE SWEDEN. (pp. 317-322).
  66. BETTONI D., FASANO G., GALLETTA G. (1990). NGC 2217, a case of apparent counterrotation. THE ASTRONOMICAL JOURNAL. vol. 99, pp. 1789-1797, 2161 ISSN: 0004-6256.
  67. ZEILINGER W. W., GALLETTA G., MADSEN C. (1990). NGC5084 - a Massive Disk Galaxy with a Tilted Ring. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. vol. 246, pp. 324-331 ISSN: 0035-8711.
  68. GALLETTA G., BETTONI D., OOSTERLOO T., FASANO G. (1990). Hidden interaction in SBO galaxies. In NASA, Marshall Space Flight Center, Paired and Interacting Galaxies: Internat. (vol. 124, pp. 159-164).
  69. GALLETTA G., BETTONI D., OOSTERLOO T., FASANO G. (1990). Hidden interaction in SBO galaxies. In NASA, Paired and Interacting Galaxies: Int. Astron. Union Colloquium. (vol. 124, pp. 159-164).
  70. ZEILINGER W. W., BERTOLA F., GALLETTA G. (1990). Elliptical Galaxies with Dust Lanes. Dusty Objects in the Universe. (pp. 227-232).
  71. BERTOLA F., GALLETTA G., CAPACCIOLI M., RAMPAZZO R. (1988). Minor-axis kinematics for seven elliptical galaxies. ASTRONOMY & ASTROPHYSICS. vol. 192, pp. 24-28 ISSN: 0004-6361.
  72. BERTOLA F., GALLETTA G., KOTANYI C., ZEILINGER W. W. (1988). A study of major-axis dust-lane ellipticals. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. vol. 234, pp. 733-744 ISSN: 0035-8711.
  73. BETTONI D., GALLETTA G., VALLENARI A. (1988). Stellar kinematics in SB0 galaxies - NGC 2983. ASTRONOMY & ASTROPHYSICS. vol. 197, pp. 69-74 ISSN: 0004-6361.
  74. BETTONI D., GALLETTA G. (1988). Stellar kinematics in the SB0 galaxy NGC 6684. ASTRONOMY & ASTROPHYSICS. vol. 190, pp. 25-60 ISSN: 0004-6361.
  75. BETTONI D., GALLETTA G. (1988). New results about SBO galaxies. THE MESSENGER. vol. 54, pp. 51-56 ISSN: 0722-6691.
  76. BETTONI D., GALLETTA G. (1987). Velocity and velocity dispersion fields of NGC 6684 - an SBO galaxy with a ring. THE MESSENGER. vol. 48, pp. 13-16 ISSN: 0722-6691.
  77. GALLETTA G. (1987). Detection of retrograde gas streaming in the SB0 galaxy NGC 4546. ASTROPHYSICAL JOURNAL. vol. 318, pp. 531-535 ISSN: 0004-637X.
  78. VARNAS S. R., BERTOLA F., GALLETTA G., FREEMAN K. C., CARTER D. (1987). NGC 5266 - an elliptical galaxy with a dust ring. ASTROPHYSICAL JOURNAL. vol. 313, pp. 69-88 ISSN: 0004-637X.
  79. GALLETTA G. (1986). The unusual barred SO galaxy NGC 4546. THE MESSENGER. vol. 45, pp. 18-20 ISSN: 0722-6691.
  80. GALLETTA G. (1986). CCD observations of supernova 1986G in CEN A. THE MESSENGER. vol. 44, pp. 2 ISSN: 0722-6691.
  81. BERTOLA F., GALLETTA G., ZEILINGER W. W. (1985). Warped dust lanes in elliptical galaxies - Transient or stationary phenomena?. ASTROPHYSICAL JOURNAL. vol. 292, pp. L51-L55 ISSN: 0004-637X.
  82. BERTOLA F., CASINI C., BETTONI D., GALLETTA G., NOREAU L., KRONBERG P. P. (1984). NGC 3448 revisited - A combined optical, radio, and UV investigation. THE ASTRONOMICAL JOURNAL. vol. 89, pp. 350-355 ISSN: 0004-6256.
  83. GALLETTA G. (1984). Observable properties of non-axisymmetric galaxies. II - Photometric parameters. ASTROPHYSICS AND SPACE SCIENCE. vol. 103, pp. 39-54 ISSN: 0004-640X.
  84. GALLETTA G. (1983). Observable properties of non-axisymmetric galaxies. I Geometrical parameters. ASTROPHYSICS AND SPACE SCIENCE. vol. 92, pp. 335-346 ISSN: 0004-640X.
  85. HAYLI A., DESOLNEUX N., GALLETTA G. (1983). Periodic orbits in a three-dimensional potential. ASTRONOMY & ASTROPHYSICS. vol. 122, pp. 1-2 ISSN: 0004-6361.
  86. NORAEU L., KRONBERG P. P., BERTOLA F., BETTONI D., GALLETTA G., CASINI C. (1983). A Multi-Frequency Study of The Irregular Galaxy NGC 3448. Bulletin of the American Astronomical Society. (vol. 15, pp. 933-933).
  87. BETTONI D., GALLETTA G. (1982). Accurate optical positions of M 82 knots. ASTRONOMY & ASTROPHYSICS. vol. 113, pp. 344-347 ISSN: 0004-6361.
  88. GALLETTA G., RECILLASCRUZ E. (1982). The large scale trend of rotation curves in the spiral galaxies NGC 1068 and NGC 3310. ASTRONOMY & ASTROPHYSICS. vol. 112, pp. 361-365 ISSN: 0004-6361.
  89. BENACCHIO L., GALLETTA G. (1981). UV observation of the nucleus of NGC 3077. ASTROPHYSICAL JOURNAL. vol. 243, pp. L65-L68 ISSN: 0004-637X.
  90. BENACCHIO L., GALLETTA G. (1980). Triaxiality in elliptical galaxies. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. vol. 193, pp. 885-894 ISSN: 0035-8711.
  91. GALLETTA G. (1980). A correlation between isophotal twisting and flattening in elliptical galaxies. ASTRONOMY & ASTROPHYSICS. vol. 81, pp. 179-181 ISSN: 0004-6361.
  92. BERTOLA F., GALLETTA G. (1979). Ellipticity and twisting of isophotes in elliptical galaxies. ASTRONOMY & ASTROPHYSICS. vol. 77, pp. 363-365 ISSN: 0004-6361.
  93. BERTOLA F., GALLETTA G. (1978). A new type of galaxy with prolate structure. ASTROPHYSICAL JOURNAL. vol. 226, pp. L115-L118 ISSN: 0004-637X.
  94. BERTOLA F., GALLETTA G. (1978). Accurate Positions of Faint Optical Objects in the Fields of Radiosources: I. The Coma Cluster Field. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. vol. 34, pp. 267-277 ISSN: 0365-0138.
  95. BERTOLA F., GALLETTA G. (1978). Accurate Positions of Faint Optical Objects in the Fields of Radiosources: II. The Perseus Cluster Field. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. vol. 34, pp. 279-284 ISSN: 0365-0138.