On the behaviour of continuous real functions in the neighborhood of a fixed point. (Short Communication). J. Drewniak; J. Kalinowski — 1975 Aequationes mathematicae
On asymptotic behaviour of some sequences built of iterates J. Drewniak; M. Kuczma — 1971 Annales Polonici Mathematici
On the behaviour of continuous real functions in the neighbourhood of a fixed point. J. Drewniak; J. Kalinowski; B. Ulewicz — 1976 Aequationes mathematicae