Márquez, I.; Durret, F.; González Delgado, R. M.; Marrero, I.; Masegosa, J.; Maza, J.; Moles, M.; Pérez, E.; Roth, M. (November 1999). "Near-infrared photometry of isolated spirals with and without an AGN". Astronomy and Astrophysics Supplement Series. 140 (1): 1–14. arXiv:astro-ph/9909351. doi:10.1051/aas:1999516. ISSN0365-0138.
Marquez, I.; Durret, F.; Masegosa, J.; Moles, M.; Varela, J.; Delgado, R. M. Gonzalez; Maza, J.; Perez, E.; Roth, M. (2003-11-28), "Long slit spectroscopy of a sample of isolated spirals with and without an AGN", Astronomy & Astrophysics, 416 (2): 475–498, arXiv:astro-ph/0311616, doi:10.1051/0004-6361:20034108
Márquez, I.; Durret, F.; González Delgado, R. M.; Marrero, I.; Masegosa, J.; Maza, J.; Moles, M.; Pérez, E.; Roth, M. (November 1999). "Near-infrared photometry of isolated spirals with and without an AGN". Astronomy and Astrophysics Supplement Series. 140 (1): 1–14. arXiv:astro-ph/9909351. doi:10.1051/aas:1999516. ISSN0365-0138.
Marquez, I.; Durret, F.; Masegosa, J.; Moles, M.; Varela, J.; Delgado, R. M. Gonzalez; Maza, J.; Perez, E.; Roth, M. (2003-11-28), "Long slit spectroscopy of a sample of isolated spirals with and without an AGN", Astronomy & Astrophysics, 416 (2): 475–498, arXiv:astro-ph/0311616, doi:10.1051/0004-6361:20034108
Márquez, I.; Durret, F.; González Delgado, R. M.; Marrero, I.; Masegosa, J.; Maza, J.; Moles, M.; Pérez, E.; Roth, M. (November 1999). "Near-infrared photometry of isolated spirals with and without an AGN". Astronomy and Astrophysics Supplement Series. 140 (1): 1–14. arXiv:astro-ph/9909351. doi:10.1051/aas:1999516. ISSN0365-0138.