1. Structural Complexity 1;Balcazar,1988
2. Undirected graphs of entanglement 2;Belkhir,2007
3. DAG-width and parity games;Berwanger,2006
4. The DAG-width of directed graphs;Berwanger;Journal of Combinatorial Theory. Series B,2012
5. Entanglement–a measure for the complexity of directed graphs with applications to logic and games;Berwanger,2005