References

A good introduction to optimization theory and a description of the the modern minimization techniques can be found in Gill, Murray and [1]. [2] deals with the particular problem of parameter estimation; chapters concerning the different estimators and their properties, and the interpretation of the estimates are remarkable. Updating formulas for Quasi-Newton methods are discussed in [4].

The reading of the cited chapters of [2] will allow an error-free interpretation of the results of the optimization algorithms. It is therefore recommended.