Matrix eigensystem routines - EISPACK guide.

SMITH, B.T. ETAL.

Springer, Berlin, 1976

ISBN: 3540075461

24 cm. original paperback. ca 350 pp. ISBN New York: 0387075461. "Lecture Notes in Computer Science". -(libr labels, library stamps, some signs of use, library notes on title and endpaper, otherwise good).