1. Edward Potkowski i jego dzieło Creator: Kaliszuk, Jerzy Format: bez média and svazek Type: model:article and TEXT Subject: scientific research, historians, and Czechs and Poles Language: Multiple languages Description: Článek doplňuje poznámka redakce (autor Ivan Hlaváček) Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public