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@article{AL_1981_20_4_a4, author = {R. K. Prank}, title = {Expressibility in the elementary theory of recursively}, journal = {Algebra i logika}, pages = {427--439}, publisher = {mathdoc}, volume = {20}, number = {4}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1981_20_4_a4/} }
R. K. Prank. Expressibility in the elementary theory of recursively. Algebra i logika, Tome 20 (1981) no. 4, pp. 427-439. http://geodesic.mathdoc.fr/item/AL_1981_20_4_a4/