@article{JTNB_1998__10_1_203_0, author = {Y.-F. S. P\'etermann}, title = {On an estimate of {Walfisz} and {Saltykov} for an error term related to the {Euler} function}, journal = {Journal de Th\'eorie des Nombres de Bordeaux}, pages = {203--236}, publisher = {Universit\'e Bordeaux I}, volume = {10}, number = {1}, year = {1998}, doi = {10.5802/jtnb.225}, zbl = {0917.11047}, mrnumber = {1827292}, language = {en}, url = {https://jtnb.centre-mersenne.org/articles/10.5802/jtnb.225/} }