@misc{Droba_Ludwik_(1854–1879)_Stósunki_1881, author={Droba, Ludwik (1854–1879)}, copyright={Public Domain}, address={Kraków}, howpublished={online}, year={1881}, publisher={Akademia Umiejętności}, language={pol}, title={Stósunki Leszka Białego z Rusią i Węgrami}, keywords={Leszek Biały (Prince of Cracow ; ca 1186 - 1227), 12th-13th c. -- Poland / central and eastern Europe, history of Poland, political history of Poland, political history of Middle and East Europe, Polish-Rus relations, Polish-Hungarian relations}, }