1. Lectures on Elliptic Boundary Value Problems;Agmon,1965
2. On a conservative, high-order accurate finite element scheme for the parabolic equation;Akrivis,1990
3. On a class of conservative, highly accurate Galerkin methods for the Schrödinger equation;Akrivis;RAIRO MMAN,1991
4. On a conservative finite difference method for the third-order, wide-angle parabolic equation;Akrivis,1993
5. On Galerkin methods for the wide-angle parabolic equation;Akrivis;J. Comput. Acoustics,1994