@article{IM_1983__73_143046,
     author = {M. Benson},
     title = {Growth {Series} of {Finite} {Extensions} of ...n are {Rational.}},
     journal = {Inventiones mathematicae},
     pages = {251--270},
     publisher = {mathdoc},
     volume = {73},
     year = {1983},
     zbl = {0498.20022},
     url = {http://geodesic.mathdoc.fr/item/IM_1983__73_143046/}
}