@article{1994-buchmann-integers
,author={Johannes A. Buchmann and Hendrik W. Lenstra, Jr.}
,ISSN={1246--7405}
,journal={Journal de Th\'eorie des Nombres de Bordeaux}
,MR={96m:11092}
,pages={221--260}
,title={{Approximating rings of integers in number fields}}
,volume={6}
,year={1994}
}