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| 1968 | ||
|---|---|---|
| 2 | EE | Gerhard Zielke: Algorithms: Algorithm 325: Adjustment of the inverse of a symmetric matrix when two symmetric elements are changed. Commun. ACM 11(2): 118 (1968) |
| 1 | EE | Gerhard Zielke: Inversion of Modified Symmetric Matrices. J. ACM 15(3): 402-408 (1968) |