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@article{AL_1964_3_5_a1, author = {A. V. Gladkii}, title = {On complexity of inference in phase-structure grammars}, journal = {Algebra i logika}, pages = {29--44}, publisher = {mathdoc}, volume = {3}, number = {5}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1964_3_5_a1/} }
A. V. Gladkii. On complexity of inference in phase-structure grammars. Algebra i logika, Tome 3 (1964) no. 5, pp. 29-44. http://geodesic.mathdoc.fr/item/AL_1964_3_5_a1/