On derivatives of functions defined on disconnected sets, I

Instytut Matematyczny Polskiej Akademii Nauk / Institute of Mathematics / Publishing house / Journals and Serials / Fundamenta Mathematicae / All issues

A. van Rooij, W. Schikhof Fundamenta Mathematicae 131 (1988), 83-92 DOI: 10.4064/fm-131-2-83-92