@article{10_4064_ap_3_2_189_199,
     author = {C. Olech},
     title = {Sur certaines propri\'et\'es des int\'egrales de l'\'equation y'=f(x,y) dont le second membre est doublement p\'eriodique},
     journal = {Annales Polonici Mathematici},
     pages = {189--199},
     publisher = {mathdoc},
     volume = {3},
     number = {2},
     year = {1956},
     doi = {10.4064/ap-3-2-189-199},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-3-2-189-199/}
}