@article{10_21136_CMJ_1981_101773,
     author = {Jarn{\'\i}k, Ji\v{r}{\'\i} and Kurzweil, Jaroslav},
     title = {Sets of solutions of differential relations},
     journal = {Czechoslovak Mathematical Journal},
     pages = {554--568},
     publisher = {mathdoc},
     volume = {31},
     number = {4},
     year = {1981},
     doi = {10.21136/CMJ.1981.101773},
     mrnumber = {631602},
     zbl = {0487.34011},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1981.101773/}
}