Elliptic curves with torsion groups $${ \mathbb {Z}}/ 8 {\mathbb {Z} } $$ and $${ \mathbb {Z}}/ 2 {\mathbb {Z}} \times {\mathbb {Z}}/ 6 {\mathbb {Z}}$$
2011 ◽
Vol 87
(5)
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pp. 61-64
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1989 ◽
Vol 1989
(397)
◽
pp. 100-161
2009 ◽
Vol 129
(2)
◽
pp. 367-380
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1990 ◽
Vol 36
(1)
◽
pp. 12-45
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