@article{10_4064_ap_25_1_103_108,
     author = {A. Sobolewska},
     title = {Sur un syst\`eme d'in\'egalit\'es diff\'erentielles partielles du second ordre \`a argument fonctionnel},
     journal = {Annales Polonici Mathematici},
     pages = {103--108},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1971},
     doi = {10.4064/ap-25-1-103-108},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-25-1-103-108/}
}