WOŹNIAKOWSKI, K. First years of the Warsaw’s „Friednd of the Children”: in the circle of Henryk Lewestam and associates (April 1861 – June 1865). AUPC Studia ad Bibliothecarum Scientiam Pertinentia, [S. l.], v. 13, p. 75–109, 2016. Disponível em: https://sbsp.uken.krakow.pl/article/view/3040. Acesso em: 3 jul. 2024.