UBV photometry and MK spectral classification of northern early-type stars at intermediate galactic latitudes
1977 ◽
Vol 180
(4)
◽
pp. 691-702
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1985 ◽
Vol 111
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pp. 411-413
1973 ◽
pp. 258-266
Keyword(s):
1979 ◽
Vol 47
◽
pp. 507-518
1970 ◽
Vol 150
(1)
◽
pp. 23-34
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1973 ◽
Vol 50
◽
pp. 258-266
Keyword(s):
Keyword(s):
1973 ◽
Vol 50
◽
pp. 152-161
Keyword(s):