1993:
Sizing and Least-Change Secant Methods
       J. E. Dennis, Jr., H. Wolkowicz
       SIAM Journal on Numerical Analysis, Vol. 30, No. 5.
       (Oct., 1993), pp. 1291-1314.
downloaded from JSTOR  Jan 19/01
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1978:
 Calculating the Best Approximate Solution of an
 Operator Equation
       H. Wolkowicz, S. Zlobec
       Mathematics of Computation, Vol. 32, No. 144. (Oct.,
       1978), pp. 1183-1213.
downloaded from JSTOR  Jan 19/01
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