@article{Pilawa:2009,
author
=
"B.Pilawa and A.Więckowski and R.Pietrzak and H.Wachowska",
title
=
"Oxidation of demineralized coal and coal free of pyrite examined by EPR spectroscopy",
journal
=
"Fuel",
volume
=
"Vol. 81",
number
=
"no 15",
pages
=
"1925--1931",
year
=
"2002",
}