Cited in Pappalardi 2003, A Survey on k-freeness; also see Kaneenika Sinha, "Average orders of certain arithmetical functions", Journal of the Ramanujan Mathematical Society 21:3 (2006), pp. 267–277.
Cited in Pappalardi 2003, A Survey on k-freeness; также см. Kaneenika Sinha, «Average orders of certain arithmetical functions», Journal of the Ramanujan Mathematical Society 21:3 (2006), pp. 267—277.