%0 Journal Article
%A Francesca Balestrieri
%T Obstruction sets and extensions of groups
%J Acta Arithmetica
%D 2016
%P 151-181
%V 173
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/aa8154-12-2015/
%R 10.4064/aa8154-12-2015
%G en
%F 10_4064_aa8154_12_2015