@article{PMFA_1958_3_3_a2,
     author = {Gregor, Ji\v{r}{\'\i}},
     title = {Dynamick\'e syst\'emy s regul\'arn{\'\i} pravou stranou. {II}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {266--270},
     year = {1958},
     volume = {3},
     number = {3},
     zbl = {0086.07301},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1958_3_3_a2/}
}