Fast solvers of integral equations of the second kind: wavelet methods. - Gennadi Vainikko; Andi Kivinukk; Jüri Lippus (J. Complex., 2005)

On Rogosinski-type approximation processes in Banach space using the framework of the cosine operator function. - Andi Kivinukk; Anna Saksa (Math. Found. Comput., 2022)