@article{IM_1976__38_142440,
     author = {E. Looijenga},
     title = {Root {Systems} and {Elliptic} {Curves}},
     journal = {Inventiones mathematicae},
     pages = {17--32},
     publisher = {mathdoc},
     volume = {38},
     year = {1976},
     zbl = {0358.17016},
     url = {http://geodesic.mathdoc.fr/item/IM_1976__38_142440/}
}