@article{1183425573, author = {Hart, William L.}, title = {The pseudo-derivative of a summable function}, journal = {Bull. Amer. Math. Soc.}, volume = {27}, number = {9-10}, year = {1921}, pages = { 202-211}, language = {en}, url = {http://dml.mathdoc.fr/item/1183425573} }
Hart, William L. The pseudo-derivative of a summable function. Bull. Amer. Math. Soc., Tome 27 (1921) no. 9-10, pp. 202-211. http://gdmltest.u-ga.fr/item/1183425573/