Statistical Inverse Estimation in Hilbert Scales. - Bernard A. Mair; Frits H. Ruymgaart (SIAM J. Appl. Math., 1996)

Input Recovery from Noisy Output Data, Using Regularized Inversion of the Laplace Transform. - Aswini K. Dey; Clyde F. Martin; Frits H. Ruymgaart (IEEE Trans. Inf. Theory, 1998)