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@article{MZM_1990_47_5_a11, author = {I. G. Simonova}, title = {Interpolation property for extensions of intuitionistic proof logic}, journal = {Matemati\v{c}eskie zametki}, pages = {88--99}, publisher = {mathdoc}, volume = {47}, number = {5}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1990_47_5_a11/} }
I. G. Simonova. Interpolation property for extensions of intuitionistic proof logic. Matematičeskie zametki, Tome 47 (1990) no. 5, pp. 88-99. http://geodesic.mathdoc.fr/item/MZM_1990_47_5_a11/