Butuzov, Valentin F. books & textbook
The Boundary Function Method for Singular Perturbation Problems (Studies in Applied and Numerical Mathematics, Series Number 14)
Vasil'eva, Adelaida B. Butuzov, Valentin F. Kalachev, Leonid V.
Society for Industrial and Applied Mathematics /1987-01-01 Hardcover / 221 Pages
isbn-10: 0898713331 / isbn-13: 9780898713336
