@article{ARM_2007_43_5_a11,
     author = {Kuessner, Thilo},
     title = {Proportionality principle for cusped manifolds},
     journal = {Archivum mathematicum},
     pages = {485--490},
     year = {2007},
     volume = {43},
     number = {5},
     mrnumber = {2381790},
     zbl = {1199.57012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2007_43_5_a11/}
}