TY  - BOOK
AU  - De Koninck,J.-M.
AU  - Ivic,A.
TI  - Topics in arithmetical functions: asymptotic formulae for sums of reciprocals of arithmetical functions and related results 
SN  - 0444860495
PY  - 1980///
CY  - Amsterdam
PB  - North-Holland Publishing
KW  - Numbers, Theory of
N1  - Bibliography: page 251-258. - Includes index
ER  -