@article{GT_2010_14_4_a0,
     author = {Li, Tao},
     title = {Heegaard surfaces and the distance of amalgamation},
     journal = {Geometry & topology},
     pages = {1871--1919},
     publisher = {mathdoc},
     volume = {14},
     number = {4},
     year = {2010},
     doi = {10.2140/gt.2010.14.1871},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2010.14.1871/}
}