Continuous emission in the spectra of planetary nebulae

[1] BARTKY W, 1935, HIGHLIGHTS ASTRONOMY, P69

[2] BOWEN, 1939, LICK OBS B, V495

[3] CILLIE G, 1932, MN, V92, P820

[4] Cillie G. G., 1936, MNRAS, V96, P771

[5] *DOM AP OBS, 1928, PUB DOM AP OBS, V4

[6] GREENSTEIN, 1939, AP J, V89, P653

[7] *HARV, 1928, HARVARD CIRC, V335

[8] MENZEL, 1941, AP J, V94, P30

[9] MENZEL, 1940, AP J, V93, P195

[10] PAGE TL, 1936, MN, V96, P627

[1] BARTKY W, 1935, HIGHLIGHTS ASTRONOMY, P69

[2] BOWEN, 1939, LICK OBS B, V495

[3] CILLIE G, 1932, MN, V92, P820

[4] Cillie G. G., 1936, MNRAS, V96, P771

[5] *DOM AP OBS, 1928, PUB DOM AP OBS, V4

[6] GREENSTEIN, 1939, AP J, V89, P653

[7] *HARV, 1928, HARVARD CIRC, V335

[8] MENZEL, 1941, AP J, V94, P30

[9] MENZEL, 1940, AP J, V93, P195

[10] PAGE TL, 1936, MN, V96, P627