@article{10_4064_ap_40_2_105_108,
     author = {P. Besala},
     title = {On the uniqueness of initial-value problems for partial differential equations of the first order},
     journal = {Annales Polonici Mathematici},
     pages = {105--108},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {1981},
     doi = {10.4064/ap-40-2-105-108},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-40-2-105-108/}
}