Lawson, Charles L, Solving least squares problems / by Charles L. Lawson and Richard J. Hanson. - Englewood Cliffs, N.J. : Prentice-Hall, 1974. - xii, 340 pages : illustrations ; 24 cm. - Prentice-Hall series in automatic computation . Bibliography: page 312-326. ISBN: 0138225850 Subjects--Topical Terms: Least squares--Data processing.