Dressler, A. (March 1980). “Galaxy morphology in rich clusters - Implications for the formation and evolution of galaxies.”. The Astrophysical Journal236: 351–365. Bibcode: 1980ApJ...236..351D. doi:10.1086/157753.
Dressler, A. (March 1980). “Galaxy morphology in rich clusters - Implications for the formation and evolution of galaxies.”. The Astrophysical Journal236: 351–365. Bibcode: 1980ApJ...236..351D. doi:10.1086/157753.