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@article{CHEB_2011_12_2_a13, author = {S. V. Syrovatskaya}, title = {On $P$-algebras based on \emph{4}-systems}, journal = {\v{C}eby\v{s}evskij sbornik}, pages = {110--117}, publisher = {mathdoc}, volume = {12}, number = {2}, year = {2011}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/CHEB_2011_12_2_a13/} }
S. V. Syrovatskaya. On $P$-algebras based on \emph{4}-systems. Čebyševskij sbornik, Tome 12 (2011) no. 2, pp. 110-117. http://geodesic.mathdoc.fr/item/CHEB_2011_12_2_a13/