Working with Zdzisław Pawlak - personal reminiscences

This paper accompanies panel contribution of the author to the session devoted to personal reminiscences of Professor Zdzisław Pawlak, a computer scientist and engineer. In particular we discuss some aspects of the work of Pawlak and researchers in his circle of collaborators in 1960ies, and especially, 1970ies. Given the lack of archival materials, the author bases this writing on personal recollections which may, at places, be imprecise.