@article{10_4064_ap_24_3_307_311,
     author = {W. Bodanko},
     title = {Les solutions non n\'egatives d'un syst\`eme d'\'equations diff\'erentielles},
     journal = {Annales Polonici Mathematici},
     pages = {307--311},
     publisher = {mathdoc},
     volume = {24},
     number = {3},
     year = {1970},
     doi = {10.4064/ap-24-3-307-311},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-24-3-307-311/}
}