@Article{305165,
     author = "Zdzisław Mikulski",
     title = "20 lat Polskiego Towarzystwa Historii Techniki ",
     year =  2004,
     volume =  49,
     number =  3-4,
     journal =  Kwartalnik Historii Nauki i Techniki,
     pages =  s. 278-281,
    }