@article{1997-hunter ,note={URL: {\tt http://cr.yp.to/\allowbreak bib/\allowbreak entries.html\#\allowbreak 1997/\allowbreak hunter}} ,author={Simon Hunter and Jonathan Sorenson} ,ISSN={0025--5718} ,journal={Mathematics of Computation} ,MR={98c:11093} ,pages={1729--1741} ,title={{Approximating the number of integers free of large prime factors}} ,volume={66} ,year={1997} }