@article{03624377, title = {(n-2)-tightness and curvature of submanifolds with boundary.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {1}, year = {1978}, pages = {421-431}, doi = {10.1155/S0161171278000423}, zbl = {0402.53035}, language = {en}, url = {http://dml.mathdoc.fr/item/03624377} }
Kühnel, Wolfgang. (n-2)-tightness and curvature of submanifolds with boundary.. International Journal of Mathematics and Mathematical Sciences, Tome 1 (1978) pp. 421-431. doi : 10.1155/S0161171278000423. http://gdmltest.u-ga.fr/item/03624377/