Lower Bounds for the Number of Edge-crossings Over the Spine in a Topological Book Embedding of a Graph.

Hikoe Enomoto Miki Shimabara Miyauchi Katsuhiro Ota Lower Bounds for the Number of Edge-crossings Over the Spine in a Topological Book Embedding of a Graph. 149-155 1999 92 Discrete Applied Mathematics 2-3 http://dx.doi.org/10.1016/S0166-218X(99)00044-X db/journals/dam/dam92.html#EnomotoMO99