@Article{231592,
     author = "Witold Więsław",
     title = "Trygonometrya kulista Jana Śniadeckiego ",
     year =  2009,
     volume =  54,
     number =  1,
     journal =  Kwartalnik Historii Nauki i Techniki,
     pages =  s. 183-190,
    }