Prokopiev, A. Yu., Introduction. 2019.
Prokopiev Andrey Yur’evich, doctor of History, professor, Saint-Petersburg State University (199034, Rossiya, Sankt-Peterburg, Universitetskaya nab., 7/9)
а.prokopiev@spbu.ru
Language: Russian
URL: http://proslogion.ru/52-intoduction/
