1. Identification of Coefficients of an Unknown Transfer Function for Elements in a Control System C.I.T;Cheng;Cranfield, College of Aeronautics Memo 8227,1983
2. Hovercraft Research and Development on the Cranfield Whirling-Arm Facility;Christopher;C.I.T. Cranfield, College of Aeronautics Memo 8009,1980
3. Heave Control of Amphibious Hovercraft, An Experiment;Christopher;Cranfield, College of Aeronautics Memo 8204, Fig.5,1982
4. A Practical Method for Identification of Dynamic Processes;Christopher,1983
5. An Investigation Concerning the Motions of a Hovercraft in Regular Head Seas Tran;Dyne;Inst.Naval Architecture,1968