Journal paper scan: www.math.ucdavis.edu/~deloera/MISC/LA-BIBLIO/trunk/Lovasz/LovaszLenstraLenstrafactor.pdf
Institutional record of preprint IW195/82: ir.cwi.nl/pub/9304 . The record names A.K.Lenstra(Arjen), H.W.Lenstra(Hendrik), and L.Lovász(László), and dates the report1982.
Cited locator: Section1, lattice-basis reduction. The initial reduction section develops the geometric algorithm used by the later polynomial-factorization construction.