TY  - JOUR
AU  - Oleg V. Kaptsov
TI  - Intermediate systems and higher-order differential constraints
JO  - Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika
PY  - 2018
SP  - 550
EP  - 560
VL  - 11
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JSFU_2018_11_5_a1/
LA  - en
ID  - JSFU_2018_11_5_a1
ER  -