@article{IVM_1993_7_a8,
     author = {V. D. Solov'ev},
     title = {The structure of program-closed classes of multiplace functions and predicates},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {47--50},
     publisher = {mathdoc},
     number = {7},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1993_7_a8/}
}