共 8 条
- [1] FELTEN JE, 1969, ASTROPHYS LETT, V4, P155
- [2] 21-CENTIMETER STUDY OF SPIRAL GALAXY MESSIER-33 [J]. ASTROPHYSICAL JOURNAL, 1971, 169 (02) : 235 - &
- [3] HOLMBERG EB, 1958, MEDD LUND ASTR OBS 2
- [4] SUNYAEV RA, 1969, ASTROPHYS LETT, V3, P33
- [5] WRIGHT MC, IN PRESS
- [7] WRIGHT MCH, 1972, MON NOT R ASTRON SOC, V155, P337
- [8] WRIGHT MCH, 1970, THESIS U CAMBRIDGE