@article{MM2_1977__21_154465,
     author = {Gert-Martin Greuel},
     title = {Die {Zahl} der {Spitzen} und die {Jacobi-Algebra} einer isolierten {Hyperfl\"achensingularit\"at.}},
     journal = {Manuscripta mathematica},
     pages = {227--242},
     publisher = {mathdoc},
     volume = {21},
     year = {1977},
     zbl = {0359.32008},
     url = {http://geodesic.mathdoc.fr/item/MM2_1977__21_154465/}
}