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@article{MAN_1984__269_163923, author = {Ernst Heintze and Jochen Br\"uning}, title = {Spektrale {Starrheit} gewisser {Drehfl\"achen.}}, journal = {Mathematische Annalen}, pages = {95--102}, publisher = {mathdoc}, volume = {269}, year = {1984}, zbl = {0553.53028}, url = {http://geodesic.mathdoc.fr/item/MAN_1984__269_163923/} }
Ernst Heintze; Jochen Brüning. Spektrale Starrheit gewisser Drehflächen.. Mathematische Annalen, Tome 269 (1984), pp. 95-102. http://geodesic.mathdoc.fr/item/MAN_1984__269_163923/