@article{GDZPPN002219824, title = {Schranken f\"ur die Chrsitoffelsymbole.}, journal = {Manuscripta mathematica}, volume = {18}, year = {1976}, pages = {261-274}, zbl = {0332.53025}, url = {http://dml.mathdoc.fr/item/GDZPPN002219824} }
Kaul, Helmut. Schranken für die Chrsitoffelsymbole.. Manuscripta mathematica, Tome 18 (1976) pp. 261-274. http://gdmltest.u-ga.fr/item/GDZPPN002219824/