Williams, Robert E.؛ Blacker, Brett؛ Dickinson, Mark؛ Dixon, W. Van Dyke؛ Ferguson, Henry C.؛ Fruchter, Andrew S.؛ Giavalisco, Mauro؛ Gilliland, Ronald L.؛ Heyer, Inge؛ Katsanis, Rocio؛ Levay, Zolt؛ Lucas, Ray A.؛ McElroy, Douglas B.؛ Petro, Larry؛ Postman, Marc؛ Adorf, Hans-Martin؛ Hook, Richard (1996). "NASA ADS entry for Williams et al. (1996)". Astronomical Journal. The SAO/NASA Astrophysics Data System. ج. 112: 1335. arXiv:astro-ph/9607174. Bibcode:1996AJ....112.1335W. DOI:10.1086/118105.
Williams, Robert E.؛ Blacker, Brett؛ Dickinson, Mark؛ Dixon, W. Van Dyke؛ Ferguson, Henry C.؛ Fruchter, Andrew S.؛ Giavalisco, Mauro؛ Gilliland, Ronald L.؛ Heyer, Inge؛ Katsanis, Rocio؛ Levay, Zolt؛ Lucas, Ray A.؛ McElroy, Douglas B.؛ Petro, Larry؛ Postman, Marc؛ Adorf, Hans-Martin؛ Hook, Richard (1996). "NASA ADS entry for Williams et al. (1996)". Astronomical Journal. The SAO/NASA Astrophysics Data System. ج. 112: 1335. arXiv:astro-ph/9607174. Bibcode:1996AJ....112.1335W. DOI:10.1086/118105.
Williams, Robert E.؛ Blacker, Brett؛ Dickinson, Mark؛ Dixon, W. Van Dyke؛ Ferguson, Henry C.؛ Fruchter, Andrew S.؛ Giavalisco, Mauro؛ Gilliland, Ronald L.؛ Heyer, Inge؛ Katsanis, Rocio؛ Levay, Zolt؛ Lucas, Ray A.؛ McElroy, Douglas B.؛ Petro, Larry؛ Postman, Marc؛ Adorf, Hans-Martin؛ Hook, Richard (1996). "NASA ADS entry for Williams et al. (1996)". Astronomical Journal. The SAO/NASA Astrophysics Data System. ج. 112: 1335. arXiv:astro-ph/9607174. Bibcode:1996AJ....112.1335W. DOI:10.1086/118105.