A Polyhedral Approach to the Multi-Layer Crossing Minimization Problem. - Michael Jünger; Eva K. Lee; Petra Mutzel; Thomas Odenthal (GD, 1997)

The thickness of a minor-excluded class of graphs. - Michael Jünger; Petra Mutzel; Thomas Odenthal; Mark Scharbrodt (Discret. Math., 1998)

The Thickness of Graphs: A Survey. - Petra Mutzel; Thomas Odenthal; Mark Scharbrodt (Graphs Comb., 1998)