@Article{219982,
     author = "Jan Kowalczyk, Zygmunt Krzak, Bogdan Balcer",
     title = "Krzemionki Opatowskie, pow. Opatów ",
     year =  1969,
     volume =  3,
     number =  ,
     journal =  Informator Archeologiczny : badania,
     pages =  s. 45-46,
    }