@article{IM_1991__104_1_143893,
     author = {Masataka Tomari},
     title = {The canonical filtration of higher dimensional purely elliptic singularity of a special type.},
     journal = {Inventiones mathematicae},
     pages = {497--520},
     publisher = {mathdoc},
     volume = {104},
     number = {1},
     year = {1991},
     zbl = {0778.14014},
     url = {http://geodesic.mathdoc.fr/item/IM_1991__104_1_143893/}
}