@article{MZ_1983__184_173351, author = {Brigitte Servatius}, title = {A {Short} {Proof} of a {Theorem} of {Burns.}}, journal = {Mathematische Zeitschrift}, pages = {133--138}, publisher = {mathdoc}, volume = {184}, year = {1983}, zbl = {0502.20009}, url = {http://geodesic.mathdoc.fr/item/MZ_1983__184_173351/} }