@article{10_21136_CPM_1977_108530,
     author = {Jarn{\'\i}k, Ji\v{r}{\'\i} and Kurzweil, Jaroslav},
     title = {On conditions on right hand sides of differential relations},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {334--349},
     publisher = {mathdoc},
     volume = {102},
     number = {4},
     year = {1977},
     doi = {10.21136/CPM.1977.108530},
     mrnumber = {0466702},
     zbl = {0369.34002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1977.108530/}
}