@article{AL_1997_36_4_a5,
     author = {S. V. Sudoplatov},
     title = {Partial algebras associated with polygonometries of pairs of},
     journal = {Algebra i logika},
     pages = {454--476},
     publisher = {mathdoc},
     volume = {36},
     number = {4},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1997_36_4_a5/}
}