Steny i mosty - VII. Meždisciplinarnostʹ: čto ot istorika trebuet, čto daet i čego lišaet? sbornik trudov meždunarodnoj naučnoj konferencii : 24-25 maja 2018 g. = Walls and bridges - 7 th. Interdisciplinarity: what does it require of the historian, what gives and what deprives of? : collection of proceedings from the international scientific conference (RGGU, 2019)