The distribution of extra-galactic nebulae

[1] *CARN I WASH, CONTR MOUNT WILS OBS, V485

[2] Dufay Jean, 1933, COMPTUS RENDUS, V196, P101

[3] Hinks A., 1911, MNRAS, V71, P588

[4] JONES, 1925, J OPTICAL SOC AM, V2, P338

[5] OHLSSON J, 1932, ANN OBSERVATORY LUND, V3

[6] SEARES FH, 1930, PAPERS MOUNT WILSON, V4, P36

[7] SEARES FH, CARNEGIE I WASHINGTO, V402

[8] SHAPLEY, 1932, HARVARD ANN 2, V88

[9] STOBBE J, 1931, ASTRONOMISCHE NACHRI, V243, P53

[10] TWYMAN, 1931, T OPTICAL SOC, V33, P1

[1] *CARN I WASH, CONTR MOUNT WILS OBS, V485

[2] Dufay Jean, 1933, COMPTUS RENDUS, V196, P101

[3] Hinks A., 1911, MNRAS, V71, P588

[4] JONES, 1925, J OPTICAL SOC AM, V2, P338

[5] OHLSSON J, 1932, ANN OBSERVATORY LUND, V3

[6] SEARES FH, 1930, PAPERS MOUNT WILSON, V4, P36

[7] SEARES FH, CARNEGIE I WASHINGTO, V402

[8] SHAPLEY, 1932, HARVARD ANN 2, V88

[9] STOBBE J, 1931, ASTRONOMISCHE NACHRI, V243, P53

[10] TWYMAN, 1931, T OPTICAL SOC, V33, P1