共 2 条
- [1] Focal Properties of optical Diffraction Grating and Latice Defects Influence on the Measurement Accuracy in ultrasoft X-Ray Region with the Use of flat Bars [J]. ZEITSCHRIFT FUR PHYSIK, 1930, 62 (7-8): : 457 - 472
- [2] On the Spectroscopy of the ultrasoft X-Ray [J]. ZEITSCHRIFT FUR PHYSIK, 1930, 62 (7-8): : 435 - 456