@article{SF_1979__17_134306,
     author = {B.M. Schein and V.S. Trohimenko},
     title = {Algebras of multiplace functions.},
     journal = {Semigroup forum},
     pages = {1--64},
     year = {1979},
     volume = {17},
     zbl = {0397.08001},
     url = {http://geodesic.mathdoc.fr/item/SF_1979__17_134306/}
}