TY  - JOUR
AU  - Francesca Balestrieri
TI  - Obstruction sets and extensions of groups
JO  - Acta Arithmetica
PY  - 2016
SP  - 151
EP  - 181
VL  - 173
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa8154-12-2015/
DO  - 10.4064/aa8154-12-2015
LA  - en
ID  - 10_4064_aa8154_12_2015
ER  -