The spectrum of helium in the extreme ultra-violet

[1] *AM OPT SOC, 1923, J AM OPT SOC, V7, P495

[2] FRICKE, 1921, PHIL MAG, V41, P814

[3] *ROYAL SOC CAN, 1921, T ROYAL SOC CAN, V15, P15

[4] 1922, Z PHY, V11, P155

[5] 1920, NATURE, V104, P565

[6] 1923, SCIENCE, V58, P48

[7] 1921, PHILOSOPHICAL MAGAZI, V41, P814

[8] 1923, ANN PHYS, V71, P142

[9] 1919, SCIENCE, V50, P481

[10] 1924, PHYS REV, V23, pR1

[1] *AM OPT SOC, 1923, J AM OPT SOC, V7, P495

[2] FRICKE, 1921, PHIL MAG, V41, P814

[3] *ROYAL SOC CAN, 1921, T ROYAL SOC CAN, V15, P15

[4] 1922, Z PHY, V11, P155

[5] 1920, NATURE, V104, P565

[6] 1923, SCIENCE, V58, P48

[7] 1921, PHILOSOPHICAL MAGAZI, V41, P814

[8] 1923, ANN PHYS, V71, P142

[9] 1919, SCIENCE, V50, P481

[10] 1924, PHYS REV, V23, pR1