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@article{AL_1983_22_4_a1, author = {V. P. Dobritsa}, title = {Complexity of the index set of a constructive model}, journal = {Algebra i logika}, pages = {372--381}, publisher = {mathdoc}, volume = {22}, number = {4}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1983_22_4_a1/} }
V. P. Dobritsa. Complexity of the index set of a constructive model. Algebra i logika, Tome 22 (1983) no. 4, pp. 372-381. http://geodesic.mathdoc.fr/item/AL_1983_22_4_a1/