@article{GT_2009_13_4_a4,
     author = {Hass, Joel and Thompson, Abigail and Thurston, William},
     title = {Stabilization of {Heegaard} splittings},
     journal = {Geometry & topology},
     pages = {2029--2050},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {2009},
     doi = {10.2140/gt.2009.13.2029},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2009.13.2029/}
}