On homogenization of solutions of the Poisson equation in a perforated domain with different types of boundary conditions on different cavities - Jäger, Willi; Olejnik, Olʹga A.; Shaposhnikova, Tat'yana Ardolionovna (Preprint / Interdisziplinäres Zentrum für Wissenschaftliches Rechnen, IWR, 1996)