@article{PFMT_2017_1_a10,
     author = {A. D. Rusakou},
     title = {On nonsemiassociativity of polyadic operation $\eta_{s, \sigma, k}$},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {68--72},
     publisher = {mathdoc},
     number = {1},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2017_1_a10/}
}