P. W. Hemker, and J. J. H. Milller, ed.Conference on the Numerical Analysis of Singular Perturbation Problems(1978 : Catholic University, The Netherland)：Numerical analysis of singular perturbation problems.Academic Pr.,1979.
Conference on the Numerical Analysis of Singular Perturbation Problems(1978 : Catholic University, The Netherland)：Numerical analysis of singular perturbation problems
P. W. Hemker, and J. J. H. Milller, ed.Academic Pr.,1979.
