@article{Drgas-Burchardt:2009,
author
=
"E.Drgas-Burchardt",
title
=
"On k-chromatically unique and k-chromatically equivalent hypergraphs",
journal
=
"Electronic Notes in Discrete Mathematics",
volume
=
"Vol. 24",
pages
=
"57--60",
year
=
"2006",
note
=
"<a href="http://www.elsevier.com/wps/find/journaldescription.cws_home/681020/description#description">http://www.elsevier.com/wps/find/journaldescription.cws_home/681020/description#description/</a>, [dostęp: 25-10-2006]",
}