Xu, Peiliang Parallel Cholesky-based reduction for the weighted integer least squares problem. (English) Zbl 1351.86027 J. Geod. 86, No. 1, 35-52 (2012). MSC: 86A30 86-08 65F20 PDFBibTeX XMLCite \textit{P. Xu}, J. Geod. 86, No. 1, 35--52 (2012; Zbl 1351.86027) Full Text: DOI Link
Voitekhovskij, Yu. L. On the principles of rock organization and the invariants of quadratic forms. (Russian) Zbl 0867.15016 Dokl. Akad. Nauk, Ross. Akad. Nauk 338, No. 3, 355-357 (1994). MSC: 15A63 86A60 15A90 PDFBibTeX XMLCite \textit{Yu. L. Voitekhovskij}, Dokl. Akad. Nauk, Ross. Akad. Nauk 338, No. 3, 355--357 (1994; Zbl 0867.15016)