@article{GDZPPN00248014X, title = {On the Sign Changes of (...(x) - lix). II.}, journal = {Monatshefte f\"ur Mathematik}, volume = {82}, year = {1976}, pages = {163-176}, zbl = {0342.10025}, url = {http://dml.mathdoc.fr/item/GDZPPN00248014X} }
Knapowski, S.; Turán, P. On the Sign Changes of (...(x) - lix). II.. Monatshefte für Mathematik, Tome 82 (1976) pp. 163-176. http://gdmltest.u-ga.fr/item/GDZPPN00248014X/