TY  - JOUR
AU  - M. Hristova
AU  - V. Hristov
TI  - On the Minimal Commutativity of a General Operator of Differentiation Type
JO  - Mathematica balkanica
PY  - 2011
SP  - 363
VL  - 25
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MABA_2011_25_4_a2/
ID  - MABA_2011_25_4_a2
ER  -