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@article{MZ_1991__206_1_174234, author = {Helga Baum}, title = {An upper bound for the first eigenvalue of the {Dirac} operator on compact spin manifolds.}, journal = {Mathematische Zeitschrift}, pages = {409--422}, publisher = {mathdoc}, volume = {206}, number = {1}, year = {1991}, zbl = {0722.53036}, url = {http://geodesic.mathdoc.fr/item/MZ_1991__206_1_174234/} }
Helga Baum. An upper bound for the first eigenvalue of the Dirac operator on compact spin manifolds.. Mathematische Zeitschrift, Tome 206 (1991) no. 1, pp. 409-422. http://geodesic.mathdoc.fr/item/MZ_1991__206_1_174234/