@InProceedings{Więckowski:1997,
author
=
"A.Więckowski and B.Pilawa and H.Wachowska and M.Kozłowski",
title
=
"EPR studies of changes in paramagnetic centres system of reductively alkylated bituminous coal",
booktitle
=
"9th International Conference on Coal Science - ICCS '97",
address
=
"Essen, Niemcy",
publisher
=
"Essen P&W Druck und Verlag GmbH ",
volume
=
"Vol. 1",
pages
=
"131--134",
year
=
"1997",
}