TY  - JOUR
AU  - S. P. Novikov
TI  - Algebraic properties of two-dimensional difference operators
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1997
SP  - 226
EP  - 227
VL  - 52
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1997_52_1_a6/
LA  - en
ID  - RM_1997_52_1_a6
ER  -