Regarding the behaviour of thorium oxides in tungsten light filaments

[1] FORSYTHE, 1925, ASTROPHYS J

[2] GEISS W, 1925, Z METALLKD, V17, P194

[3] GROTTHUSCALL, 1923, METALL ERZ, V10, P844

[4] The electron emission from thoriated tungsten filaments [J]. PHYSICAL REVIEW, 1923, 22 (04): : 0357 - 0398

[5] SMITHELLS, 1922, J CHEM SOC, P2236

[6] SMITHELLS CJ, 1922, J CHEM SOC, P2236

[7] TAMMANN G, 1923, LEHRBUCH METALLOGRAP, P107

[8] VONWARTENBERG, 1923, Z ELEKTROCHEM, P214

[9] WEDEKIND, 1922, EDELE ERDEN ERZE

[1] FORSYTHE, 1925, ASTROPHYS J

[2] GEISS W, 1925, Z METALLKD, V17, P194

[3] GROTTHUSCALL, 1923, METALL ERZ, V10, P844

[4] The electron emission from thoriated tungsten filaments [J]. PHYSICAL REVIEW, 1923, 22 (04): : 0357 - 0398

[5] SMITHELLS, 1922, J CHEM SOC, P2236

[6] SMITHELLS CJ, 1922, J CHEM SOC, P2236

[7] TAMMANN G, 1923, LEHRBUCH METALLOGRAP, P107

[8] VONWARTENBERG, 1923, Z ELEKTROCHEM, P214

[9] WEDEKIND, 1922, EDELE ERDEN ERZE