@article{GDZPPN002346982, title = {Relationen zwischen Divergenz und Rotation.}, journal = {Mathematica Scandinavica}, volume = {11}, year = {1962}, pages = {91-102}, zbl = {0111.34205}, url = {http://dml.mathdoc.fr/item/GDZPPN002346982} }
Weier, Josef. Relationen zwischen Divergenz und Rotation.. Mathematica Scandinavica, Tome 11 (1962) pp. 91-102. http://gdmltest.u-ga.fr/item/GDZPPN002346982/