@article{Więckowski:2009,
author
=
"A.Więckowski and L.Najder-Kozdrowska and J.Grudzińska",
title
=
"Two-component EPR spectra of brown coal",
journal
=
"Karbo",
volume
=
"R. 50",
number
=
"nr 4",
pages
=
"233--237",
year
=
"2005",
}