TY  - JOUR
AU  - I. A. Firdman
TI  - Algebraic classification of physical structures with zero.~I
JO  - Sibirskij žurnal industrialʹnoj matematiki
PY  - 2005
SP  - 131
EP  - 148
VL  - 8
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SJIM_2005_8_4_a10/
LA  - ru
ID  - SJIM_2005_8_4_a10
ER  -