@article{MZ_1970__114_171297,
     author = {Klaus Wolffhardt},
     title = {Die {Betti-Reihe} und die {Abweichungen} eines lokalen {Rings.}},
     journal = {Mathematische Zeitschrift},
     pages = {66--78},
     publisher = {mathdoc},
     volume = {114},
     year = {1970},
     zbl = {0177.06502},
     url = {http://geodesic.mathdoc.fr/item/MZ_1970__114_171297/}
}