@Article{122838,
     author = "Aldona Ertman",
     title = "O "Memoriale" królewskiego kartografa Karola Perthéesa ",
     year =  2006,
     volume =  15,
     number =  1-2 (29-30),
     journal =  Analecta : studia i materiały z dziejów nauki,
     pages =  s. 243-254,
    }