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 | 1958 | |
|---|---|---|
| 2 |      | Pentti Laasonen: On the Truncation Error of Discrete Approximations to the Solutions of Dirichlet Problems in a Domain with Corners. J. ACM 5(1): 32-38 (1958) |
| 1 | | Pentti Laasonen: On the Solution of Poisson's Difference Equation. J. ACM 5(4): 370-382 (1958) |