@Article{251821,
     author = "Zofia Pawlikowska-Brożek",
     title = "Zdzisław Opial (1930-1974) ",
     year =  1975,
     volume =  20,
     number =  1,
     journal =  Kwartalnik Historii Nauki i Techniki,
     pages =  s. 109-112,
    }