@article{1077469697, author = {Collins, H. S.}, title = {The kernel of a semigroup of measures}, journal = {Duke Math. J.}, volume = {28}, number = {1}, year = {1961}, pages = { 387-392}, language = {en}, url = {http://dml.mathdoc.fr/item/1077469697} }
Collins, H. S. The kernel of a semigroup of measures. Duke Math. J., Tome 28 (1961) no. 1, pp. 387-392. http://gdmltest.u-ga.fr/item/1077469697/