@article{Kowalak:2009,
author
=
"S.Kowalak and M.Miluśka and A.Więckowski and J.Goslar",
title
=
"ESR study on ultramarine based on synthetic zeolites",
journal
=
"Molecular Physics Reports",
volume
=
"Vol. 5",
pages
=
"221--224",
year
=
"1994",
}