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@article{AL_1990_29_1_a1, author = {V. A. Lyubetskii}, title = {Model completeness of a theory and valuation of formulas}, journal = {Algebra i logika}, pages = {15--28}, publisher = {mathdoc}, volume = {29}, number = {1}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1990_29_1_a1/} }
V. A. Lyubetskii. Model completeness of a theory and valuation of formulas. Algebra i logika, Tome 29 (1990) no. 1, pp. 15-28. http://geodesic.mathdoc.fr/item/AL_1990_29_1_a1/