@article{Słowik:2009,
author
=
"G.Słowik and A.Więckowski",
title
=
"Influence of microwave power on EPR spectra of coal macerals",
journal
=
"Applied Magnetic Resonance",
volume
=
"Vol. 24",
number
=
"no 3-4",
pages
=
"437--445",
year
=
"2003",
}