Utility of imaging sensors in tracking systems. - David D. Sworder; R. G. Hutchins; M. Kent (Autom., 1993)

Image-enhanced estimation methods. - David D. Sworder; P. F. Singer; D. Doria; R. G. Hutchins (Proc. IEEE, 1993)

Predicting a hybrid system. - John E. Boyd; David D. Sworder; R. G. Hutchins (Commun. Inf. Syst., 2003)