Photoelectric measurements of the luminous efficiency of daylight

[1] ABBOT CG, 1908, ANN ASTROPHYS OBS SM, V2, P5

[2] ABBOT CG, 1934, SMITHSONIAN MISC COL, V92

[3] ABBOT CG, 1934, SMITHSONIAN MISC COL, V87

[4] ABBOT CG, 1913, ANN ASTROPHYS OBS SM, V3, P133

[5] ATKINS WRG, 1933, PHILOS T ROY SOC B, V222, P157

[6] ATKINS WRG, 1936, PHILOS T ROY SOC B, V236, P245

[7] COBLENTZ WW, 1912, PUBL CARNEGIE I WASH

[8] COBLENTZ WW, 1917, SCI PAP US BUR STAND

[9] FOWLE FE, 1933, SMITHSONIAN PHYS TAB, P335

[10] GIBSON KS, 1923, SCI PAP US BUR STAND

[1] ABBOT CG, 1908, ANN ASTROPHYS OBS SM, V2, P5

[2] ABBOT CG, 1934, SMITHSONIAN MISC COL, V92

[3] ABBOT CG, 1934, SMITHSONIAN MISC COL, V87

[4] ABBOT CG, 1913, ANN ASTROPHYS OBS SM, V3, P133

[5] ATKINS WRG, 1933, PHILOS T ROY SOC B, V222, P157

[6] ATKINS WRG, 1936, PHILOS T ROY SOC B, V236, P245

[7] COBLENTZ WW, 1912, PUBL CARNEGIE I WASH

[8] COBLENTZ WW, 1917, SCI PAP US BUR STAND

[9] FOWLE FE, 1933, SMITHSONIAN PHYS TAB, P335

[10] GIBSON KS, 1923, SCI PAP US BUR STAND