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| 2009 | ||
|---|---|---|
| 2 | EE | Urszula Ledzewicz, Heinz Schättler: High-order Maximum Principle for Abnormal Extremals. Encyclopedia of Optimization 2009: 1520-1527 |
| 1 | EE | Urszula Ledzewicz, Heinz Schättler: High-order Necessary Conditions for Optimality for Abnormal Points. Encyclopedia of Optimization 2009: 1527-1534 |
| 1 | Heinz Schättler | [1] [2] |