@article{Mandel’shtam:1972,author = {S. L. Mandel’shtam},title = {Polarization of the Emission of X-ray Flares on the Sun and their Spectra},publisher = {Uspekhi Fizicheskikh Nauk},year = {1972},journal = {Usp. Fiz. Nauk},volume = {107},number = {5},pages = {156-157},url = {https://ufn.ru/ru/articles/1972/5/h/},doi = {10.3367/UFNr.0107.197205h.0156}}