@article{MAN_1992__294_4_165004,
     author = {Horst Kn\"orrer and Joel Feldmann},
     title = {There is no two dimensional analogue of {Lam\'e's} equation.},
     journal = {Mathematische Annalen},
     pages = {295--324},
     publisher = {mathdoc},
     volume = {294},
     number = {4},
     year = {1992},
     zbl = {0763.58027},
     url = {http://geodesic.mathdoc.fr/item/MAN_1992__294_4_165004/}
}