共 15 条
[4]
DYCK HM, 1971, ASTRON J, V76, P43, DOI 10.1086/111081
[5]
GRIGORYAN KA, 1960, CONTR BYURAKAN OBS, V28, P3
[6]
HALL JS, 1963, BASIC ASTRONOMICAL D, pCH16
[7]
JOHNSON HL, 1968, NEBULAE INTERSTELLAR, pCH5
[9]
SERKOWSKI K, 1971, P C LATE TYPE STARS, P107