@article{GDZPPN002438674, title = {On a geometric property of the normal bundle of surfaces in IP4.}, journal = {Mathematische Zeitschrift}, volume = {207}, year = {1991}, pages = {535-550}, zbl = {0707.14038}, url = {http://dml.mathdoc.fr/item/GDZPPN002438674} }
Braun, R. On a geometric property of the normal bundle of surfaces in IP4.. Mathematische Zeitschrift, Tome 207 (1991) pp. 535-550. http://gdmltest.u-ga.fr/item/GDZPPN002438674/