For citations:

Kozhukhov I.B., Petrikov A.O. INJECTIVE AND PROJECTIVE ACTS OVER A COMPLETELY 0-SIMPLE SEMIGROUP. Chebyshevskii Sbornik. 2016;17(4):65-78. (In Russ.) https://doi.org/10.22405/2226-8383-2016-17-4-65-78