On Kelvin Inversion and low-Frequency Scattering. - George Dassios; R. E. Kleinman (SIAM Rev., 1989)

Nonlinearized approach to profile inversion. - R. E. Kleinman; P. M. Van Den Berg (Int. J. Imaging Syst. Technol., 1990)

Observations on the numerical stability of the Galerkin method. - Allan G. Dallas; George C. Hsiao; R. E. Kleinman (Adv. Comput. Math., 1998)