Lozitskiy V, Lozitskaya N. Line profiles and magnetic field in the x17.2/4B solar flare of October 28, 2003. Comparison of spectral observations in photospheric and chromospheric lines. Изв. Крымск. Астрофиз. Обсерв. 2008;104(2):29-29. Дата доступа февраль 20, 2026. https://jncrao.ru/index.php/izvcrao/article/view/630