Shtark, E. V. Introduction to the subject of historical science. Kievan Rus (9-13 centuries) : video lecture for the 1st year students, majoring in the specialty 31.05.01 General Medicine / E. V. Shtark ; Krasnoyarsk State Medical University. - Krasnoyarsk : KrasSMU, 2021. - Изображение. Устная речь. Текст : электронные