@article{10_2140_agt_2011_11_887,
     author = {Lei, Fengchun and Wu, Jie},
     title = {The intersecting kernels of {Heegaard} splittings},
     journal = {Algebraic and Geometric Topology},
     pages = {887--908},
     year = {2011},
     volume = {11},
     number = {2},
     doi = {10.2140/agt.2011.11.887},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2011.11.887/}
}