@article{1102995997, author = {Hicks, N.}, title = {Closed vector fields.}, journal = {Pacific J. Math.}, volume = {15}, number = {4}, year = {1965}, pages = { 141-151}, language = {en}, url = {http://dml.mathdoc.fr/item/1102995997} }
Hicks, N. Closed vector fields.. Pacific J. Math., Tome 15 (1965) no. 4, pp. 141-151. http://gdmltest.u-ga.fr/item/1102995997/