Velghe, A. G.
H[alpha]-emission stars and planetary nebulae in the vicinity of M8 and M20 and in Vela from l=230º to l=241º along the galatic equator
/ A. G. Velghe
. - Bruxelles : Observatoire Royal de Belgique, 1957
. - P. 302-317 : il
. - (Communications de l'Observatoire Royal de Belgique ; 128)
Reprinted from: The astrophysical journal; vol. 126, nº 2 (1957).
Astrofísica
CDU 52