@article{PPN597721351+DMDLOG_0006, title = {Cap. II. Mehrfache Differentiationen.}, booktitle = {Compendium der h\"oheren Analysis Bd. 1}, series = {GDML\_Books}, publisher = {Vieweg}, year = {1881}, pages = {57}, url = {http://dml.mathdoc.fr/item/PPN597721351+DMDLOG_0006} }
(éd.). Cap. II. Mehrfache Differentiationen., dans Compendium der höheren Analysis Bd. 1, GDML_Books, (1881), p. 57. http://gdmltest.u-ga.fr/item/PPN597721351+DMDLOG_0006/