共 12 条
- [1] BLOCK, 1948, C R, V227, P333
- [2] BLOCK, 1950, ANN AP, V13, P406
- [3] BOWEN, 1947, AP J, V105, P92
- [4] HERBIG, 1946, PUB ASP, V58, P201
- [5] JOY, 1945, PUB ASP, V57, P172
- [6] MCLAUGHLIN, 1946, PUB ASP, V58, P160
- [7] SANDFORD, 1945, AP J, V102, P360
- [8] SANFORD, 1946, PUB ASP, V58, P158
- [9] SWINGS, 1940, AP J, V91, P613
- [10] WELLMANN, 1948, IAU1153 CIRC