@article{GDZPPN002219778, title = {Isometrische Immersionen der Kodimension 2 von Raumformen.}, journal = {Manuscripta mathematica}, volume = {18}, year = {1976}, pages = {165-188}, zbl = {0325.53050}, url = {http://dml.mathdoc.fr/item/GDZPPN002219778} }
Henke, Wolfgang. Isometrische Immersionen der Kodimension 2 von Raumformen.. Manuscripta mathematica, Tome 18 (1976) pp. 165-188. http://gdmltest.u-ga.fr/item/GDZPPN002219778/