%0 Journal Article
%A Oprea, Dragos
%T Framed sheaves over treefolds and symmetric obstruction theories
%J Documenta mathematica
%D 2013
%P 323-342
%V 18
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DOCMA_2013__18__a39/
%G en
%F DOCMA_2013__18__a39