@article{1183493596,
author = {Pillai, S. Sivasankaranarayana},
title = {On some functions connected with $\phi \left( n \right)$},
journal = {Bull. Amer. Math. Soc.},
volume = {35},
number = {6},
year = {1929},
pages = { 832-836},
language = {en},
url = {http://dml.mathdoc.fr/item/1183493596}
}
Pillai, S. Sivasankaranarayana. On some functions connected with $\phi \left( n \right)$. Bull. Amer. Math. Soc., Tome 35 (1929) no. 6, pp. 832-836. http://gdmltest.u-ga.fr/item/1183493596/