@article{GT_2011_15_4_a0,
     author = {Cheltsov, Ivan and Shramov, Constantin},
     title = {On exceptional quotient singularities},
     journal = {Geometry & topology},
     pages = {1843--1882},
     publisher = {mathdoc},
     volume = {15},
     number = {4},
     year = {2011},
     doi = {10.2140/gt.2011.15.1843},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2011.15.1843/}
}