@article{10_2140_agt_2007_7_2141,
     author = {Lisca, Paolo},
     title = {Sums of lens spaces bounding rational balls},
     journal = {Algebraic and Geometric Topology},
     pages = {2141--2164},
     year = {2007},
     volume = {7},
     number = {4},
     doi = {10.2140/agt.2007.7.2141},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2007.7.2141/}
}