5[7]Spentzas K N, Alkhazali I. Kinematics of four-wheel-steering vehicles. Forschung im Ingenieurwesen, 2001,66(5):123~126
6[8]Spentzas K N, Alkhazali I. Dynamics of four-wheel-steering vehicles. Forschung im Ingenieurwesen, 2001,66(6):260~266
7[9]Fahey S O'F, Huston D R. A novel automotive steering linkage. Journal of Mechanical Design, 1997,119(4):481~484
8[10]Reister D B, Unseren M A. Position and constraint force control of a vehicle with two or more steerable drive wheels. IEEE Trans on Robotics and Automation, 1993,9(6):723~731