E. E. Slutsky / W. Bortkiewicz: correspondence 1923-1928
Education junior high school math teacher in Galicia in the years 1850-1918
Georg Cantor. Biographical materials of his family and chaildhood in St. Petersburg archives
Ladislaus von Bortkiewicz: a scientific biography
Number theory and algebra in Salomon Lubelski's papers
Number theory in Francis Mertens' papers
Prime numbers obsession
Sierpinski's contribution to the number theory
Society of sciences in Paris. I. Documents
Teaching algebra and calculus of probability in secondary Galicia in the late nineteenth and early twentieth century
Waclaw Sierpinski's works on real functions