$L$-series and their $2$-adic valuations at $s=1$ attached to CM elliptic curves
Tom 103 / 2002
Acta Arithmetica 103 (2002), 79-95
MSC: Primary 11G05; Secondary 11G15, 11G40, 12J20.
DOI: 10.4064/aa103-1-6
