共 25 条
- [4] PERIOD-RADIUS RELATION FOR PULSATING VARIABLE STARS [J]. ASTROPHYSICAL JOURNAL, 1964, 140 (04) : 1482 - &
- [5] FERNIE WW, 1965, ASTROPHYS J, V142, P1072
- [6] A spiral nebula as a stellar system Messier 33 [J]. ASTROPHYSICAL JOURNAL, 1926, 63 (04) : 236 - 274
- [9] A spiral nebula as a stellar system, Messier 31 [J]. ASTROPHYSICAL JOURNAL, 1929, 69 (02) : 103 - 157
- [10] HUBBLE E, 1951, P AM PHILOS SOC, V95, P461