Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts
@article{PIM_1978_N_S_23_37_a17, author = {Svetozar Mili\'c}, title = {A {Proof} {And} {An} {Extension} {Of} {A} {Theorem} {Of} {G.} {Birkoff}}, journal = {Publications de l'Institut Math\'ematique}, pages = {137 }, publisher = {mathdoc}, volume = {_N_S_23}, number = {37}, year = {1978}, url = {http://geodesic.mathdoc.fr/item/PIM_1978_N_S_23_37_a17/} }
Svetozar Milić. A Proof And An Extension Of A Theorem Of G. Birkoff. Publications de l'Institut Mathématique, _N_S_23 (1978) no. 37, p. 137 . http://geodesic.mathdoc.fr/item/PIM_1978_N_S_23_37_a17/