TY  - BOOK
AU  - Kuperman,Israel B.
TI  - Approximate linear algebraic equations
T2  - The New university mathematics series
SN  - 0442045468
U1  - 512..942 
PY  - 1971///
CY  - London, New York
PB  - Van Nostrand Reinhold
KW  - Equations
KW  - Approximation theory
N1  - Includes bibliographies and index
ER  -