Soft modelling and fuzzy logic control of wheeled skid-steer electric vehicles with steering prioritisation. - Ron E. Colyer; John T. Economou (Int. J. Approx. Reason., 1999)

Modelling of skid steering and fuzzy logic vehicle ground interaction. - John T. Economou; Ron E. Colyer (ACC, 2000)

Fuzzy-hybrid modelling of an Ackerman steered electric vehicle. - John T. Economou; Ron E. Colyer (Int. J. Approx. Reason., 2006)