@article{Fiedorowicz:2013,
author
=
"A.Fiedorowicz",
title
=
"Acyclic 6-colouring of graphs with maximum degree 5 and small maximum average degree",
journal
=
"Discussiones Mathematicae - Graph Theory",
volume
=
"Vol. 33",
number
=
"no. 1",
pages
=
"91--99",
year
=
"2013",
}