<h1>Casten, Richard Guy</h1> <h2>Article from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2> <ul> <li>Lagerstrom, P. A. and Casten, R. G. (1972) <a href="https://resolver.caltech.edu/CaltechAUTHORS:LAGsiamrev72">Basic Concepts Underlying Singular Perturbation Techniques</a>; SIAM Review; Vol. 14; No. 1; 63-120; <a href="https://doi.org/10.1137/1014002">10.1137/1014002</a></li> </ul>