@article{1258138104, author = {Berndt, J\"urgen and Vanhecke, Lieven and Verh\'oczki, L\'aszl\'o}, title = {Harmonic and minimal unit vector fields on Riemannian symmetric spaces}, journal = {Illinois J. Math.}, volume = {47}, number = {4}, year = {2003}, pages = { 1273-1286}, language = {en}, url = {http://dml.mathdoc.fr/item/1258138104} }
Berndt, Jürgen; Vanhecke, Lieven; Verhóczki, László. Harmonic and minimal unit vector fields on Riemannian symmetric spaces. Illinois J. Math., Tome 47 (2003) no. 4, pp. 1273-1286. http://gdmltest.u-ga.fr/item/1258138104/