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2. Some operating rules for the optomotor system of a hoverfly during voluntary flight;Collett;Journal of Comparative Physiology,1980
3. Visual control of flight behaviour in the hoverfly, Syritta pipiens;Collett;Journal of Comparative Physiology,1975
4. The orientation of animals;Fraenkel,1961
5. Kinematics nomenclature for psychological accelerations;Hixson,1969