TY  - JOUR
AU  - I. A. Firdman
TI  - Algebraic classification of physical structures with a~zero. II.~Topological aspects
JO  - Sibirskij žurnal industrialʹnoj matematiki
PY  - 2006
SP  - 135
EP  - 146
VL  - 9
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SJIM_2006_9_1_a11/
LA  - ru
ID  - SJIM_2006_9_1_a11
ER  -