?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Watkins&rft.aufirst=M&rft.au=Watkins%2C+M&rft.date=27+November+2014&rft.issue=2&rft.atitle=Ranks+of+quadratic+twists+of+elliptic+curves&rft.title=Publications+math%C3%A9matiques+de+Besan%C3%A7on%3A+Alg%C3%A8bre+et+Th%C3%A9orie+des+Nombres&rft.pages=63-98&rft.genre=article