1. Bang-Jensen, J.: Arc-local tournament digraphs: a generalization of tournaments and bipartite tournaments. Department of Mathematics and Computer Science, University of Southern Denmark, Preprint No. 10, (1993)
2. Bang-Jensen, J.: The structure of strong arc-locally semicomplete digraphs. Discrete Math. 283, 1–6 (2004)
3. Bang-Jensen, J., Gutin, G.: Digraphs: Theory. Algorithms and Applications. Springer, London (2000)
4. Balbuenna, C., Guevara, M., Olsen, M.: Structural properties of CKI-digraphs. AKCE Int. J. Graphs Comb. 11(1), 67–80 (2014)
5. Chudnovsky, M., Robertson, N., Seymour, P., Thomas, P.: The strong perfect graph theorem. Ann. Math. 164(2), 51–229 (2006)