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• Tomasz Zamek-Gliszczyński, Duality in the Theory of One-Parameter Semigroups of Linear Operators, University of Warsaw, Institute of Mathematics,1979;
• Wojciech Chojnacki, On Banach Means and Their Vector-Valued Analogues, University of Warsaw, Institute of Mathematics,1979;
• Sławomir Tymowski, Cosine Operator Functions, University of Warsaw, Institute of Mathematics,1978;
• Jan Rusinek, On Integrability of Infinite-Dimensional Representations of Lie Algebras, University of Warsaw, Institute of Mathematics,1978;
• Andrzej Pokrzywa, The Spectra of Operators Approximating a Normal Operator, Polish Academy of Sciences, Institute of Mathematics,1976;
• Teresa Regińska, Approximate Methods of Solving a Boundary-Value Problem for an Ordinary Differential Equation in an Infinite Interval, Polish Academy of Sciences, Institute of Mathematics,1975;
• Zbigniew Świętochowski, Cauchy's Problem for a Certain Second-Order Differential Equation in a Hilbert Space and Its Applications to Partial Differential Equations, University of Warsaw, Institute of Mathematics,1974;
• Krzysztof Nowak, Approximation of Solutions to Linear Differential Equations in Banach Spaces by Difference Processes, Polish Academy of Sciences, Institute of Mathematics,1972;