Willmott, A. P.; Ellington, C. P. (1997). "The mechanics of flight in the hawkmoth Manduca sexta. I. Kinematics of hovering and forward flight". The Journal of Experimental Biology. 200 (Pt 21): 2705–22. Bibcode:1997JExpB.200.2705W. doi:10.1242/jeb.200.21.2705. PMID9418029.
Willmott, A. P.; Ellington, C. P. (1997). "The mechanics of flight in the hawkmoth Manduca sexta. I. Kinematics of hovering and forward flight". The Journal of Experimental Biology. 200 (Pt 21): 2705–22. Bibcode:1997JExpB.200.2705W. doi:10.1242/jeb.200.21.2705. PMID9418029.
Willmott, A. P.; Ellington, C. P. (1997). "The mechanics of flight in the hawkmoth Manduca sexta. I. Kinematics of hovering and forward flight". The Journal of Experimental Biology. 200 (Pt 21): 2705–22. Bibcode:1997JExpB.200.2705W. doi:10.1242/jeb.200.21.2705. PMID9418029.