%0 Journal Article
%A Takano, Mitio
%T New Modification of the Subformula Property for a Modal Logic
%J Bulletin of the Section of Logic
%D 2020
%P 255-268
%V 49
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/BSL_2020_49_3_a2/
%G en
%F BSL_2020_49_3_a2