@article{MZM_1990_48_1_a14,
     author = {S. V. Pchelintsev},
     title = {Binary-$(-1,1)$-nilalgebras},
     journal = {Matemati\v{c}eskie zametki},
     pages = {103--109},
     year = {1990},
     volume = {48},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1990_48_1_a14/}
}