@article{10_4064_ap_13_3_303_308,
     author = {K. Zima},
     title = {Sur une in\'egalit\'e diff\'erentielle \`a l'argument retard\'e},
     journal = {Annales Polonici Mathematici},
     pages = {303--308},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {1963},
     doi = {10.4064/ap-13-3-303-308},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-13-3-303-308/}
}