Webliography
https://en.wikipedia.org/wiki/Slavs - some general information about slavs from old times to the present;
https://www.britannica.com/topic/Slav - some interesting facts and history;
http://www.rodnovery.ru/en/articles/971-slavs - slavic languages and ethno-cultural subdivisions'
https://slavicaffairs.com/2018/11/19/brief-history-of-the-ancient-slavs/ - brief history of ancient slavs;
https://www.slavorum.org/who-are-we-slavs-and-what-is-our-origin/ - facts about tribes, which were lived before the slavic immigration in the East Europe;