@InCollection{Jarczyk:2013,
author
=
"W.Jarczyk",
title
=
"Convexity and almost convexity in groups",
pages
=
"55--76",
year
=
"2013",
booktitle
=
"Recent developments in functional equations and inequalities ISBN: 9788386806188",
editor
=
"ed. J. Brzdęk, J. Chmieliński, K. Ciepliński [et al]",
publisher
=
"Institute of Mathematics Polish Academy of Science",
address
=
"Warszawa",
series
=
"Banach Center Publications, Vol. 99",
}