共 15 条
- [2] AITKEN RG, 1932, NEW GENERAL CATALOGU
- [3] DIECKVOSS W, 1955, ASTR NACH, V282, P25
- [4] EGGEN OJ, 1967, MAGNETIC RELATED STA, P141
- [5] HOERNER SV, 1957, Z ASTROPHYS, V42, P273
- [6] IANNA PA, 1968, THESIS OHIO STATE U
- [7] JASCHEK C, 1958, Z AP, V45, P35
- [8] JASCHEK C, 1967, PRIVATE COMMUNICATIO
- [10] JOHNSON HL, 1958, LOWELL OBS B, V4, P47