中国科学院数学与系统科学研究院期刊网
AMS
Some Notes on Identities for Dirichlet L-functions
Rong MA, Yu Long ZHANG, Melchior GRÜTZMANN
Acta Mathematica Sinica . 2014, (5): 747 -754 .  DOI: 10.1007/s10114-014-2642-5