@article{Więckowski:2009,
author
=
"A.Więckowski and B.Pilawa and W.Wojtowicz and G.Słowik and H.Wachowska",
title
=
"Thermally excited multiplet states in flame coal",
journal
=
"Fuel",
volume
=
"Vol. 80",
number
=
"no 3",
pages
=
"451--453",
year
=
"2001",
}