TY  - JOUR
AU  - S. V. Syrovatskaya
TI  - On $P$-algebras based on \emph{4}-systems
JO  - Čebyševskij sbornik
PY  - 2011
SP  - 110
EP  - 117
VL  - 12
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CHEB_2011_12_2_a13/
LA  - ru
ID  - CHEB_2011_12_2_a13
ER  -