B. Cox 
Cox B., 1980, Trimming a pterosaur's wings. Nature, Vol. 284 No.3 pp.400-402 med 1 illustration.
Cox B., Savage R. J. G., Gardiner B. and Dixon D., 1988, The Simon and Schuster Encyclopedia of Dinosaurs and Prehistoric Creatures : A Visual Who's Who of Prehistoric Life. Simon & Schuster, 312 pp