@misc{_Board_[ca,
 copyright={Public Domain},
 howpublished={online},
 year={[ca 1950]},
 title={Board of the Warsaw Scientific Society on the 150th anniversary of the foundation of the Warsaw Society of Friends of Learning},
 type={Image},
 URL={http://www.rcin.org.pl/Content/74987/PDF/WA058_88652_TNW_150.pdf},
 keywords={Warsaw Scientific Society, Warsaw Society of Friends of Learning, Sierpiński, Wacław (1882-1969), Żórawski, Kazimierz (1866-1953), Kemula, Wiktor (1902-1985), Suchodolski, Bogdan (1903-1992), Zalewski, Stefan (1888-1959), Wiśniewski, Wincenty Lesław (1904-1958), Piotrowski, Jan (1885-1962), Brahmer, MIeczysław (1899-1984), Górski, Marian (1886-1961), Czubalski, Franciszek (1885-1965), Słoński, Stanisław (1879-1959), Lipiński, Edward (1888-1986), Kuratowski, Kazimierz (1896-1980), Michałowski, Kazimierz (1901-1981), Nawroczyński, Bogdan (1882-1974)},
}