TY  - JOUR
AU  - Boris Kruglikov
AU  - Valentin Lychagin
TI  - Multi-brackets of differential operators and compatibility of PDE systems
JO  - Comptes Rendus. Mathématique
PY  - 2006
SP  - 557
EP  - 561
VL  - 342
IS  - 8
PB  - Elsevier
DO  - 10.1016/j.crma.2006.02.013
LA  - en
ID  - CRMATH_2006__342_8_557_0
ER  -