TY  - JOUR
AU  - V. Del Barco 
TI  - Symplectic Structures on Nilmanifolds: an Obstruction for their Existence
JO  - Journal of Lie theory
PY  - 2014
SP  - 889
EP  - 908
VL  - 24
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JLT_2014_24_3_JLT_2014_24_3_a13/
ID  - JLT_2014_24_3_JLT_2014_24_3_a13
ER  -