@article{Jarczyk:2018,
author
=
"J.Jarczyk and W.Jarczyk",
title
=
"Invariance of means",
journal
=
"Aequationes Mathematicae",
volume
=
"Vol. 92",
number
=
"iss. 5",
pages
=
"801--872",
year
=
"2018",
}