THE SUB-SYSTEM OF PLANETARY NEBULAE

[1] BAADE W, 1955, ASTRON J, V60, P151, DOI 10.1086/107181

[2] BAUM WA, 1960, CARNEGIE I WASHINGTO, V59, P81

[3] Photographic studies of nebulae - Fifth paper [J]. ASTROPHYSICAL JOURNAL, 1937, 86 (04) : 496 - 498

[4] DIMENSIONS OF DIFFUSE AND PLANETARY NEBULAE IN SMALL MAGELLANIC CLOUD [J]. ASTROPHYSICAL JOURNAL, 1963, 137 (03) : 747 - &

[5] POSSIBILITY OF DETECTING A GRAVITATIONAL RED SHIFT IN 21-CM RADIATION FROM THE GALAXY [J]. NATURE, 1960, 188 (4746) : 216 - 217

[6] LATYPOV AA, 1957, PUBL ASTRO OBS TASHK, V5, P31

[7] THE STRUCTURE OF THE OWL NEBULA [J]. ASTROPHYSICAL JOURNAL, 1954, 120 (02) : 261 - &

[8] ELECTRON DENSITIES IN 2 PLANETARY NEBULAE [J]. ASTROPHYSICAL JOURNAL, 1960, 131 (03) : 537 - 540

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

[10] MINKOWSKI R, GALACTIC STRUCTURE

[1] BAADE W, 1955, ASTRON J, V60, P151, DOI 10.1086/107181

[2] BAUM WA, 1960, CARNEGIE I WASHINGTO, V59, P81

[3] Photographic studies of nebulae - Fifth paper [J]. ASTROPHYSICAL JOURNAL, 1937, 86 (04) : 496 - 498

[4] DIMENSIONS OF DIFFUSE AND PLANETARY NEBULAE IN SMALL MAGELLANIC CLOUD [J]. ASTROPHYSICAL JOURNAL, 1963, 137 (03) : 747 - &

[5] POSSIBILITY OF DETECTING A GRAVITATIONAL RED SHIFT IN 21-CM RADIATION FROM THE GALAXY [J]. NATURE, 1960, 188 (4746) : 216 - 217

[6] LATYPOV AA, 1957, PUBL ASTRO OBS TASHK, V5, P31

[7] THE STRUCTURE OF THE OWL NEBULA [J]. ASTROPHYSICAL JOURNAL, 1954, 120 (02) : 261 - &

[8] ELECTRON DENSITIES IN 2 PLANETARY NEBULAE [J]. ASTROPHYSICAL JOURNAL, 1960, 131 (03) : 537 - 540

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

[10] MINKOWSKI R, GALACTIC STRUCTURE