@article{1077377460, author = {Davis, Philip J.}, title = {Semi-dense closure of systems of functions}, journal = {Duke Math. J.}, volume = {35}, number = {1}, year = {1968}, pages = { 91-101}, language = {en}, url = {http://dml.mathdoc.fr/item/1077377460} }
Davis, Philip J. Semi-dense closure of systems of functions. Duke Math. J., Tome 35 (1968) no. 1, pp. 91-101. http://gdmltest.u-ga.fr/item/1077377460/