@article{10_2140_agt_2005_5_1433,
     author = {Boileau, Michel and Wang, Shicheng},
     title = {Degree one maps between small 3{\textendash}manifolds and {Heegaard} genus},
     journal = {Algebraic and Geometric Topology},
     pages = {1433--1450},
     year = {2005},
     volume = {5},
     number = {4},
     doi = {10.2140/agt.2005.5.1433},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2005.5.1433/}
}