On a Free-Moving Boundary Diffusion Problem in a Catalytic Gas-Solid System with Catalyst Decay. - Domingo Alberto Tarzia; Eugenius Bobula; Krystyna Twardowska; Luis T. Villa (SIAM J. Appl. Math., 2000)

On the convergence of the wavelet-Galerkin method for nonlinear filtering. - Lukasz D. Nowak; Monika Paslawska-Poludniak; Krystyna Twardowska (Int. J. Appl. Math. Comput. Sci., 2010)