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| 1998 | ||
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| 1 | EE | John M. Herbert, Walter C. Ermler: Symbolic Implementation of Arbitrary-order Perturbation Theory Using Computer Algebra: Application to Vibrational-Rotational Analysis of Diatomic Molecules. Computers & Chemistry 22(2-3): 169-184 (1998) |
| 1 | Walter C. Ermler | [1] |