@article{10_4064_ap_2_1_73_76,
     author = {Franciszek Leja and Z. Opial},
     title = {Un lemme sur les polyn\^omes de {Lagrange}},
     journal = {Annales Polonici Mathematici},
     pages = {73--76},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1955},
     doi = {10.4064/ap-2-1-73-76},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-2-1-73-76/}
}