@article{MAN_1992__294_4_164990,
     author = {Masa-Nori Ishida},
     title = {The duality of cusp singularities.},
     journal = {Mathematische Annalen},
     pages = {81--98},
     publisher = {mathdoc},
     volume = {294},
     number = {4},
     year = {1992},
     zbl = {0759.14003},
     url = {http://geodesic.mathdoc.fr/item/MAN_1992__294_4_164990/}
}