@article{Pilawa:2009,
author
=
"B.Pilawa and A.Więckowski and M.Lewandowski",
title
=
"EPR studies of thermal decomposition of coal samples",
journal
=
"Nukleonika",
volume
=
"Vol. 42",
number
=
"no 2",
pages
=
"457--464",
year
=
"1997",
}