@article{MV_1976_28_1_a1,
     author = {M. Bertolino},
     title = {Sur une synth\`ese pratique de deux m\'ethodes qualitatives d'\'etude des \'equations diff\'erentielles},
     journal = {Matemati\v{c}ki vesnik},
     pages = {9 },
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {1976},
     url = {http://geodesic.mathdoc.fr/item/MV_1976_28_1_a1/}
}