TY  - JOUR
AU  - Jarník, Jiří
AU  - Kurzweil, Jaroslav
TI  - Sets of solutions of differential relations
JO  - Czechoslovak Mathematical Journal
PY  - 1981
SP  - 554
EP  - 568
VL  - 31
IS  - 4
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1981.101773/
DO  - 10.21136/CMJ.1981.101773
LA  - en
ID  - 10_21136_CMJ_1981_101773
ER  -