@article{10_2140_agt_2011_11_1077, author = {Branson, Mark}, title = {Symplectic manifolds with vanishing {action{\textendash}Maslov} homomorphism}, journal = {Algebraic and Geometric Topology}, pages = {1077--1096}, year = {2011}, volume = {11}, number = {2}, doi = {10.2140/agt.2011.11.1077}, url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2011.11.1077/} }