1. Bibliography;Korovkin-type Approximation Theory and its Applications;1994-12-31
2. Lototsky-Schnabl operators on the unit interval and degenerate diffusion equations;Progress in Functional Analysis, Proceedings of the International Functional Analysis Meeting on the Occasion of the 60th Birthday of Professor M. Valdivia;1992
3. On some approximation processes and their associated parabolic problems;Rendiconti del Seminario Matematico e Fisico di Milano;1991-12
4. On C0-semigroups generated by differential operators satisfying Ventcel's boundary conditions;Indagationes Mathematicae (Proceedings);1986