@inProceedings{Belward2009,
author = "John A. Belward
 and Ian W. Turner
 and Moa'ath N. Oqielat",
title = "Numerical investigations of linear least squares methods for derivative estimation",
series = "ANZIAM J.",
volume = "50",
pages = "C844--C857",
year = 2009,
booktitle = " Proceedings of the 14th Biennial Computational Techniques and Applications Conference, CTAC-2008",
editor = "Geoffry N. Mercer  and A. J. Roberts",
month = mar,
note = "\url {http://anziamj.austms.org.au/ojs/index.php/ANZIAMJ/article/view/1475} [March 5, 2009]",
keywords = "computational mathematics, numerical approximation, linear least squares",
subjclass = "65D25",
}