共 38 条
- [2] BECKLIN EE, 1973, ASTROPHYS LETT COMM, V15, P87
- [3] RECOMBINATION LINES IN PLANETARY-NEBULAE AT 15 GIGAHERTZ [J]. ASTROPHYSICAL JOURNAL, 1974, 193 (03) : 687 - 692
- [5] BROWN RL, 1975, PREPRINT
- [7] BUSSOLETTI E, 1974, ASTRON ASTROPHYS, V34, P141
- [8] CHURCHWELL E, 1974, ASTRON ASTROPHYS, V32, P283