1929/03/01 by Edwin Hubble, E. P. Hubble · 3 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #History and Developments in Astronomy #Stellar, planetary, and galactic studies
paper · doi:10.1086/143167
crossref issued 1929/03/01 · crossref published 1929/03/01 · crossref published-print 1929/03/01 · openalex publication_date 1929/03/01 · crossref created 2002/07/26 · crossref deposited 2020/11/06 · openalex created_date 2025/10/10 · crossref indexed 2026/05/18 · openalex updated_date 2026/05/19