Cosmic-ray intensity and geomagnetic effects

[61] The absolute intensity of the ionisation by cosmic radiation at sealevel [J]. PHYSICA, 1937, 4 : 0245 - 0255

[62] Ionisation by cosmic and radioactive radiation at different gas pressures. The influence of the wall of the vessel. Disintegration of heavy atoms by cosmic rays [J]. PHYSICA, 1935, 2 : 111 - 124

[63] The ionisation in a gas with differing pressures under the influence of photonic radiation and of corpuscular radiation [J]. PHYSICA, 1935, 2 : 811 - 816

[64] Ionisation by gamma rays and rontgen rays in argon at high pressures. An absolute dosemeter [J]. PHYSICA, 1937, 4 : 0651 - 0658

[65] Ionisation of gamma rays in air at high pressure at various temperatures [J]. PHYSICA, 1937, 4 : 0216 - 0220

[66] Ionisation in gases at high pressures by gamma radiation [J]. PHYSICA, 1938, 5 : 725 - 736

[67] Ionisation measurements in the air with high pressures [J]. PHYSICA, 1935, 2 : 825 - 832

[68] Clay J, 1932, P K AKAD WET-AMSTERD, V35, P1282

[69] Brief Original Announcements [J]. NATURWISSENSCHAFTEN, 1933, 21 : 43 - 44

[70] Clay J, 1930, P K AKAD WET-AMSTERD, V33, P711

[61] The absolute intensity of the ionisation by cosmic radiation at sealevel [J]. PHYSICA, 1937, 4 : 0245 - 0255

[62] Ionisation by cosmic and radioactive radiation at different gas pressures. The influence of the wall of the vessel. Disintegration of heavy atoms by cosmic rays [J]. PHYSICA, 1935, 2 : 111 - 124

[63] The ionisation in a gas with differing pressures under the influence of photonic radiation and of corpuscular radiation [J]. PHYSICA, 1935, 2 : 811 - 816

[64] Ionisation by gamma rays and rontgen rays in argon at high pressures. An absolute dosemeter [J]. PHYSICA, 1937, 4 : 0651 - 0658

[65] Ionisation of gamma rays in air at high pressure at various temperatures [J]. PHYSICA, 1937, 4 : 0216 - 0220

[66] Ionisation in gases at high pressures by gamma radiation [J]. PHYSICA, 1938, 5 : 725 - 736

[67] Ionisation measurements in the air with high pressures [J]. PHYSICA, 1935, 2 : 825 - 832

[68] Clay J, 1932, P K AKAD WET-AMSTERD, V35, P1282

[69] Brief Original Announcements [J]. NATURWISSENSCHAFTEN, 1933, 21 : 43 - 44

[70] Clay J, 1930, P K AKAD WET-AMSTERD, V33, P711