1. Singular perturbations of improperly posed problems;Adelson;SIAM J. Math. Anal.,1973
2. Singular perturbation of an improperly posed Cauchy problem;Adelson;Ibid.,1974
3. Bennett, A., Continuous dependence on modeling in the Cauchy problem for second order partial differential equations, Ph.D. Dissertation, Cornell University (1986).
4. Continuous dependence on geometry for the backward heat equation;Crooke;Math. Meth. in the Appl. Sci.,1984
5. Continuous data dependence for the equations of classical elastodynamics;Knops;Proc. Camb. Phil. Soc.,1969