@article{Matkowski:2011,
author
=
"J.Matkowski",
title
=
"Quotient mean, its invariance with respect to a quasi-arithmetic mean-type mapping, and some applications",
journal
=
"Aequationes Mathematicae",
volume
=
"Vol. 82",
number
=
"no 3",
pages
=
"247--253",
year
=
"2011",
}