TY  - JOUR
AU  - A. D. Rusakou
AU  - M. V. Selkin
TI  - New criteria of associativity of $l$-ary operation $\eta_{s,\sigma,k}$
JO  - Problemy fiziki, matematiki i tehniki
PY  - 2018
SP  - 76
EP  - 79
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PFMT_2018_2_a10/
LA  - ru
ID  - PFMT_2018_2_a10
ER  -