@article{Borowiecki:2009,
author
=
"M.Borowiecki and M.Hałuszczak and M.Skowrońska",
title
=
"Minimal reducible bounds for 1-nonouterplanar graphs",
journal
=
"Discrete Mathematics",
volume
=
"Vol. 219",
number
=
"no 1-3",
pages
=
"9--15",
year
=
"2000",
}