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@article{DM_1990_2_1_a9, author = {S. S. Marchenkov}, title = {Representation of dictionary predicates from the arithmetical hierarchy}, journal = {Diskretnaya Matematika}, pages = {87--93}, publisher = {mathdoc}, volume = {2}, number = {1}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DM_1990_2_1_a9/} }
S. S. Marchenkov. Representation of dictionary predicates from the arithmetical hierarchy. Diskretnaya Matematika, Tome 2 (1990) no. 1, pp. 87-93. http://geodesic.mathdoc.fr/item/DM_1990_2_1_a9/