%0 Journal Article %A Piermarco Cannarsa,Patrick Martinez %A Judith Vancostenoble %T Sharp Estimate of the Cost of Controllability for a Degenerate Parabolic Equation with Interior Degeneracy %J Minimax theory and its applications %D 2021 %V 6 %N 2 %U http://geodesic.mathdoc.fr/item/MTA_2021_6_2_a5/ %F MTA_2021_6_2_a5