Knjižnica sveučilišta Cornell Astrophysics > Astrophysics of Galaxies. Suk Kim, Soo-Chang Rey, Helmut Jerjen, Thorsten Lisker, Eon-Chang Sung, Youngdae Lee, Jiwon Chung, Mina Pak, Wonhyeong Yi, Woong Lee: The Extended Virgo Cluster Catalog. DOI: 10.1088/0067-0049/215/2/22.