Noam D. Elkies Rational Points Near Curves and Small Nonzero |x<sup>3</sup>-y<sup>2</sup>| via Lattice Reduction. 33-64 2000 conf/ants/2000 ANTS db/conf/ants/ants2000.html#Elkies00 http://dx.doi.org/10.1007/10722028_2