@article{MS2_1983__53_166848,
     author = {Rikard Bogvad},
     title = {Gorenstein rings with transcendental {Poincar\'e-series.}},
     journal = {Mathematica Scandinavica},
     pages = {5--15},
     publisher = {mathdoc},
     volume = {53},
     year = {1983},
     zbl = {0527.13013},
     url = {http://geodesic.mathdoc.fr/item/MS2_1983__53_166848/}
}