Torsion subgroups of elliptic curves with non-cyclic torsion over ${\Bbb Q}$ in elementary abelian 2-extensions of ${\Bbb Q}$
Tom 115 / 2004
Acta Arithmetica 115 (2004), 29-45
MSC: Primary 11G05.
DOI: 10.4064/aa115-1-3
