@article{Kahlig:2014,
author
=
"P.Kahlig and J.Matkowski",
title
=
"Note on some infinite products for \pi",
journal
=
"Journal of Applied Mathematics and Computational Mechanics",
volume
=
"Vol. 13",
number
=
"no. 2",
pages
=
"43--50",
year
=
"2014",
}