@article{02221886, title = {Degree one maps between small 3-manifolds and Heegaard genus.}, journal = {Geometry \& Topology}, volume = {5}, year = {2005}, pages = {1433-1450}, doi = {10.2140/agt.2005.5.1433}, zbl = {1084.57016}, language = {en}, url = {http://dml.mathdoc.fr/item/02221886} }
Boileau, Michel; Wang, Shicheng. Degree one maps between small 3-manifolds and Heegaard genus.. Geometry & Topology, Tome 5 (2005) pp. 1433-1450. doi : 10.2140/agt.2005.5.1433. http://gdmltest.u-ga.fr/item/02221886/