@article{10_4064_ap_13_1_105_112,
     author = {W. Mlak and C. Olech},
     title = {Integration of infinite systems of differential inequalities},
     journal = {Annales Polonici Mathematici},
     pages = {105--112},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1963},
     doi = {10.4064/ap-13-1-105-112},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-13-1-105-112/}
}