OBSERVATIONS OF SOUTHERN PLANETARY NEBULAE

[11] HENIZE KG, 1959, SKY TELESCOPE, V18, P315

[12] HOFFLEIT D, 1953, HARVARD ANN, V119, P37

[13] KOHOUTEK L, 1962, B ASTRON I CZECH, V13, P120

[14] KOHOUTEK L, 1964, B ASTR I CZECH, V15, P164

[15] MAYALL MW, 1951, HARVARD B, V920, P322

[16] 2ND SUPPLEMENT TO THE MOUNT WILSON CATALOGUE AND BIBLIOGRAPHY OF STARS OF CLASS-B AND CLASS-A WHOSE SPECTRA HAVE BRIGHT HYDROGEN LINES [J]. ASTROPHYSICAL JOURNAL, 1949, 110 (03) : 387 - +

[17] Catalogue and bibliography of stars of classes B and A whose spectra have bright hydrogen lines [J]. ASTROPHYSICAL JOURNAL, 1933, 78 (02) : 87 - 140

[18] ADDITIONAL STARS WHOSE SPECTRA HAVE A BRIGHT H-ALPHA LINE [J]. ASTROPHYSICAL JOURNAL, 1950, 112 (01) : 72 - 89

[19] Supplement to the Mount Wilson catalogue and bibliography of stars of classes B and A whose spectra have bright hydrogen lines [J]. ASTROPHYSICAL JOURNAL, 1943, 98 (02) : 153 - 184

[20] THE GALACTIC DISTRIBUTION OF PLANETARY NEBULAE [J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1963, 75 (447) : 488 - 491

[11] HENIZE KG, 1959, SKY TELESCOPE, V18, P315

[12] HOFFLEIT D, 1953, HARVARD ANN, V119, P37

[13] KOHOUTEK L, 1962, B ASTRON I CZECH, V13, P120

[14] KOHOUTEK L, 1964, B ASTR I CZECH, V15, P164

[15] MAYALL MW, 1951, HARVARD B, V920, P322

[16] 2ND SUPPLEMENT TO THE MOUNT WILSON CATALOGUE AND BIBLIOGRAPHY OF STARS OF CLASS-B AND CLASS-A WHOSE SPECTRA HAVE BRIGHT HYDROGEN LINES [J]. ASTROPHYSICAL JOURNAL, 1949, 110 (03) : 387 - +

[17] Catalogue and bibliography of stars of classes B and A whose spectra have bright hydrogen lines [J]. ASTROPHYSICAL JOURNAL, 1933, 78 (02) : 87 - 140

[18] ADDITIONAL STARS WHOSE SPECTRA HAVE A BRIGHT H-ALPHA LINE [J]. ASTROPHYSICAL JOURNAL, 1950, 112 (01) : 72 - 89

[19] Supplement to the Mount Wilson catalogue and bibliography of stars of classes B and A whose spectra have bright hydrogen lines [J]. ASTROPHYSICAL JOURNAL, 1943, 98 (02) : 153 - 184

[20] THE GALACTIC DISTRIBUTION OF PLANETARY NEBULAE [J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1963, 75 (447) : 488 - 491