%0 Journal Article %A L. D. Beklemishev %T Normalization of deductions and interpolation for some logics of provability %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1987 %P 223-224 %V 42 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1987_42_6_a8/ %G en %F RM_1987_42_6_a8