@article{MAN_1982__259_163642,
     author = {Fritz Ehlers and Kam-Chan Lo},
     title = {Minimal {Characteristic} {Exponent} of the {Gauss-Manin} {Connection} of {Isolated} {Singular} {Point} and {Newton} {Polyhedron.}},
     journal = {Mathematische Annalen},
     pages = {431--442},
     publisher = {mathdoc},
     volume = {259},
     year = {1982},
     zbl = {0469.32004},
     url = {http://geodesic.mathdoc.fr/item/MAN_1982__259_163642/}
}