CENTRAL STARS OF PLANETARY NEBULAE OF LOW SURFACE BRIGHTNESS

[1] GLOBULAR CLUSTERS AND PLANETARY NEBULAE DISCOVERED ON THE NATIONAL-GEOGRAPHIC-SOCIETY-PALOMAR OBSERVATORY SKY SURVEY [J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1955, 67 (397) : 258 - 261

[2] Eggen O. J, 1959, OBSERVATORY, V79, P88

[3] GREENSTEIN JL, 1952, PASP, V64, P256

[4] MINKOWSKI R, 1960, ANN REP MT WILSON PA, P18

[5] EVOLUTION OF CENTRAL STARS OF PLANETARY NEBULAE [J]. ASTROPHYSICAL JOURNAL, 1963, 138 (01) : 67 - &

[6] VORONTSOVVELYAM.BA, 1962, COMM STERNBERG ASTR, V118, P3

[1] GLOBULAR CLUSTERS AND PLANETARY NEBULAE DISCOVERED ON THE NATIONAL-GEOGRAPHIC-SOCIETY-PALOMAR OBSERVATORY SKY SURVEY [J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1955, 67 (397) : 258 - 261

[2] Eggen O. J, 1959, OBSERVATORY, V79, P88

[3] GREENSTEIN JL, 1952, PASP, V64, P256

[4] MINKOWSKI R, 1960, ANN REP MT WILSON PA, P18

[5] EVOLUTION OF CENTRAL STARS OF PLANETARY NEBULAE [J]. ASTROPHYSICAL JOURNAL, 1963, 138 (01) : 67 - &

[6] VORONTSOVVELYAM.BA, 1962, COMM STERNBERG ASTR, V118, P3