@article{1077374529, author = {Appling, William D. L.}, title = {Infinite series and nonnegative valued interval functions}, journal = {Duke Math. J.}, volume = {30}, number = {1}, year = {1963}, pages = { 107-111}, language = {en}, url = {http://dml.mathdoc.fr/item/1077374529} }
Appling, William D. L. Infinite series and nonnegative valued interval functions. Duke Math. J., Tome 30 (1963) no. 1, pp. 107-111. http://gdmltest.u-ga.fr/item/1077374529/