Useful links

University of Warsaw, Faculty of Mathematics, Informatics and Mechanics www.mimuw.edu.pl
Excellence Initiative - Research University https://inicjatywadoskonalosci.uw.edu.pl/
USOSweb https://usosweb.mimuw.edu.pl
MathSciNet www.ams.org/mathscinet
AMS Classification http://www.ams.org/msc/
Zentralblatt http://www.zentralblatt-math.org/zmath/en/advanced/
Visegrad Fund www.visegradfund.org/
University of Warsaw Library www.buw.uw.edu.pl
Central Mathematical Library (Polish Academy of Sciences) http://www.impan.gov.pl/LIB/