Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MM2_1976__19_154417, author = {Helmut Kaul}, title = {Schranken f\"ur die {Chrsitoffelsymbole.}}, journal = {Manuscripta mathematica}, pages = {261--274}, publisher = {mathdoc}, volume = {19}, year = {1976}, zbl = {0332.53025}, url = {http://geodesic.mathdoc.fr/item/MM2_1976__19_154417/} }
Helmut Kaul. Schranken für die Chrsitoffelsymbole.. Manuscripta mathematica, Tome 19 (1976), pp. 261-274. http://geodesic.mathdoc.fr/item/MM2_1976__19_154417/