TY  - JOUR
AU  - Huaning Liu
AU  - Wenpeng Zhang
TI  - On the mean value of $L(m,\chi )L(n,\overline {\chi })$ at 
 positive integers $m,n\geq 1$
JO  - Acta Arithmetica
PY  - 2006
SP  - 51
EP  - 56
VL  - 122
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa122-1-5/
DO  - 10.4064/aa122-1-5
LA  - en
ID  - 10_4064_aa122_1_5
ER  -