@article{ARM_1969__5_2_a1,
     author = {Chrastina, Jan},
     title = {A note on the criteria of uniqueness of the solution of equation $y'=f(x,y)$},
     journal = {Archivum mathematicum},
     pages = {75--77},
     publisher = {mathdoc},
     volume = {05},
     number = {2},
     year = {1969},
     mrnumber = {0301267},
     zbl = {0241.34002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1969__5_2_a1/}
}