A STUDY OF ROSETTE NEBULA NGC 2237-46

[41] TRAVING G, 1957, Z AP, V41, P215

[42] UNDERHILL AB, 1951, PUB DOM AP OBS VICTO, V8, P357

[43] UNDERHILL AB, 1950, PUB COPENHAGEN OBS

[44] WADE CM, 1958, REV MOD PHYS, V30, P946

[45] WURM K, 1958, ENCYCLOPEDIA PHYSICS, V50, P399

[41] TRAVING G, 1957, Z AP, V41, P215

[42] UNDERHILL AB, 1951, PUB DOM AP OBS VICTO, V8, P357

[43] UNDERHILL AB, 1950, PUB COPENHAGEN OBS

[44] WADE CM, 1958, REV MOD PHYS, V30, P946

[45] WURM K, 1958, ENCYCLOPEDIA PHYSICS, V50, P399