Kominek, Zygfryd; Miller, Harry I. On functions that preserve a certain class of sets. (English) Zbl 0706.28004 Boll. Unione Mat. Ital., VII. Ser., A 4, No. 2, 165-172 (1990). Reviewer: O.T.Alas MSC: 28A05 PDFBibTeX XMLCite \textit{Z. Kominek} and \textit{H. I. Miller}, Boll. Unione Mat. Ital., VII. Ser., A 4, No. 2, 165--172 (1990; Zbl 0706.28004)
Kominek, Z.; Miller, H. I. Some remarks on a theorem of Steinhaus. (English) Zbl 0586.28002 Glas. Mat., III. Ser. 20(40), 337-344 (1985). MSC: 28A12 54C50 PDFBibTeX XMLCite \textit{Z. Kominek} and \textit{H. I. Miller}, Glas. Mat., III. Ser. 20(40), 337--344 (1985; Zbl 0586.28002)