- E. P. Ushakova, “Upper estimates for the approximation numbers of the generalized Laplace transform”, Proc. Steklov Inst. Math., 283, no. 1, 2013, 260
- Stefan Kindermann, “On the Type of Ill-Posedness of Generalized Hilbert Matrices and Related Operators”, Numerical Functional Analysis and Optimization, 45, no. 7-9, 2024, 484