@InProceedings{Więckowski:1997,
author
=
"A.Więckowski and B.Pilawa and M.Lewandowski",
title
=
"Evolution of paramagnetic centres during thermal decomposition of coal and macerals",
booktitle
=
"9th International Conference on Coal Science - ICCS '97",
address
=
"Essen, Niemcy",
publisher
=
"Essen P&W Druck und Verlag GmbH ",
volume
=
"Vol. 2",
pages
=
"657--660",
year
=
"1997",
}