%0 Journal Article %A Kevin Coulembier %A Volodymyr Mazorchuk %T Extension Fullness of the Categories of Gelfand–Zeitlin and Whittaker Modules %J Symmetry, integrability and geometry: methods and applications %D 2015 %V 11 %U http://geodesic.mathdoc.fr/item/SIGMA_2015_11_a15/ %G en %F SIGMA_2015_11_a15