@article{MV_1967_19_3_a7,
     author = {B. Marti\'c},
     title = {Sur certaines equations aux derivees partieelles indeterminees},
     journal = {Matemati\v{c}ki vesnik},
     pages = {250 },
     year = {1967},
     volume = {19},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/MV_1967_19_3_a7/}
}