@article{Bojarski:2023,
author
=
"J.Bojarski and J.Matkowski",
title
=
"Means in money exchange operations",
journal
=
"Journal of Applied Mathematics and Computational Mechanics",
volume
=
"Vol. 22",
number
=
"iss. 1",
pages
=
"5--12",
year
=
"2023",
}