Raus, T., and U. Hämarik. “On Numerical Realization of Quasioptimal Parameter Choices in (iterated) Tikhonov and Lavrentiev Regularization”. Mathematical Modelling and Analysis, vol. 14, no. 1, Mar. 2009, pp. 99-108, doi:10.3846/1392-6292.2009.14.99-108.