Pétermann, Y.-F.. "Changes of sign of error terms related to Euler's function and to divisor functions II." Acta Arithmetica 51.4 (1988): 321-333. <http://eudml.org/doc/206177>.
@article{Pétermann1988, author = {Pétermann, Y.-F.}, journal = {Acta Arithmetica}, keywords = {Euler's totient; number of sign changes; Euler phi-function; divisor function; error terms; lower bound}, language = {eng}, number = {4}, pages = {321-333}, title = {Changes of sign of error terms related to Euler's function and to divisor functions II}, url = {http://eudml.org/doc/206177}, volume = {51}, year = {1988}, }
TY - JOUR AU - Pétermann, Y.-F. TI - Changes of sign of error terms related to Euler's function and to divisor functions II JO - Acta Arithmetica PY - 1988 VL - 51 IS - 4 SP - 321 EP - 333 LA - eng KW - Euler's totient; number of sign changes; Euler phi-function; divisor function; error terms; lower bound UR - http://eudml.org/doc/206177 ER -