1. A collocation method for parabolic and elliptic quasilinear problems on general domains;Ascher,1975
2. On the invarance of the interpolation points of the discrete ℓ1-approximation;Ascher;J. Approx. Th.,1978
3. An interactive graphics system for boundary value problems: II;Ascher,1976
4. Finite element method with penalty;Babuska,1971
5. An improved algorithm for discrete ℓ1-linear approximation;Barrodale;SIAM J. Num. Anal,1973