@article{10_21136_CMJ_1967_100797,
     author = {Kart\'ak, Karel},
     title = {A generalization of the {Carath\'eodory} theory of differential equations},
     journal = {Czechoslovak Mathematical Journal},
     pages = {482--514},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {1967},
     doi = {10.21136/CMJ.1967.100797},
     mrnumber = {0220998},
     zbl = {0189.37101},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100797/}
}