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- [4] SINGULARITIES AND BORDISM OF (INTEGRABLE) Q-PLANE FIELDS NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1974, 21 (01): : A231 - A231
- [9] ROBUST MOTION RECOVERY - THE 2-PLANE METHOD INTELLIGENT AUTONOMOUS SYSTEMS 2, VOLS 1 AND 2, 1989, : 619 - 629