%0 Journal Article
%A Dmitri R. Yafaev
%T Second-Order Differential Operators in the Limit Circle Case
%J Symmetry, integrability and geometry: methods and applications
%D 2021
%V 17
%U http://geodesic.mathdoc.fr/item/SIGMA_2021_17_a76/
%G en
%F SIGMA_2021_17_a76