@article{10_4064_ap_3_1_32_36,
     author = {J. G\'orski},
     title = {Sur certaines propri\'et\'es de points extr\'emaux li\'es \`a un domaine plan},
     journal = {Annales Polonici Mathematici},
     pages = {32--36},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1956},
     doi = {10.4064/ap-3-1-32-36},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-3-1-32-36/}
}