共 50 条
- [41] On the determination of active siliceous earth in puzzolanic substances KOLLOID-ZEITSCHRIFT, 1935, 70 (01): : 100 - 105
- [43] Content of subsurface air in radio active emanations PHYSIKALISCHE ZEITSCHRIFT, 1908, 9 : 304 - 306
- [47] Magnetic distractibility of the rays from radio active substances. PHYSIKALISCHE ZEITSCHRIFT, 1901, 3 : 385 - 390
- [49] Enriched radio active substances in ferrous spring sediments. BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT, 1921, 54 : 1715 - 1722
- [50] Measuring the activity of the radio active substances of torsion balance. PHYSIKALISCHE ZEITSCHRIFT, 1931, 32 : 630 - 634