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- [2] Comments on the work of A. Ehmert: "On effect the direction of the ultra radiation. I" and "About the sidereal time course of cosmic ray intensity. II." ZEITSCHRIFT FUR PHYSIK, 1937, 105 (05): : 642 - 644
- [8] Tests on nuclear transformation and ultra-radiation PHYSIKALISCHE ZEITSCHRIFT, 1937, 38 : 964 - 967