On the rank of elliptic curves over $\mathbf{Q}(\sqrt{-3})$ with torsion groups $\mathbf{Z}/3\mathbf{Z} \times \mathbf{Z}/3\mathbf{Z}$ and $\mathbf{Z}/3\mathbf{Z} \times \mathbf{Z}/6\mathbf{Z}$
2011 ◽
Vol 87
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pp. 61-64
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1989 ◽
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pp. 100-161
2009 ◽
Vol 129
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pp. 367-380
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1990 ◽
Vol 36
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pp. 12-45
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