TY  - JOUR
AU  - E. Chapovsky
AU  - O. Shevchyk
TI  - On divergence and sums of derivations
JO  - Algebra and discrete mathematics
PY  - 2017
SP  - 99
EP  - 105
VL  - 24
IS  - 1
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/ADM_2017_24_1_a6/
LA  - en
ID  - ADM_2017_24_1_a6
ER  -