@article{1183407492, author = {Harkness, J.}, title = {The Theory of Functions of a Real Variable}, journal = {Bull. New York Math. Soc.}, volume = {2}, number = {4}, year = {1893}, pages = { 71-76}, language = {en}, url = {http://dml.mathdoc.fr/item/1183407492} }
Harkness, J. The Theory of Functions of a Real Variable. Bull. New York Math. Soc., Tome 2 (1893) no. 4, pp. 71-76. http://gdmltest.u-ga.fr/item/1183407492/