1971/06/01 by H. J. Rood, Gummuluru N. Sastry · 7 citations
Physics and Astronomy · #Astronomy and Astrophysical Research
paper · pdf · doi:10.1086/129128
openalex publication_date 1971/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Preliminary types are listed for the 111 Abell clusters with distance classes less than four. Key words: clusters of galaxies - galaxies