%0 Journal Article %A Kürbis, Nils %T A Binary Quantifier for Definite Descriptions in Intuitionist Negative Free Logic: Natural Deduction and Normalisation %J Bulletin of the Section of Logic %D 2019 %P 81-97 %V 48 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/BSL_2019_48_2_a0/ %G en %F BSL_2019_48_2_a0