1. A note on the mathematical modelling of damped second order systems;Burns;J. Math. Systems Estimation Control,1998
2. J.A. Burns, E.M. Cliff, Z. Liu, R.D. Spies, Results on transversal and axial motions of a system of two beams coupled to a joint through two legs, ICAM Report 20070213-1; also J. Comput. Appl. Math., submitted for publication
3. A mathematical model for linear elastic systems with structural damping;Chen;Quart. Appl. Math.,1982
4. Regularization of Inverse Problems;Engl,1996
5. Calculus of Variations with Applications;Ewing,1969