Belmonte, R., Golovach, P. A., Heggernes, P., Hof van 't, P., Kaminski, M., & Paulusma, D. (2011, December). Finding contractions and induced minors in chordal graphs via disjoint paths. Presented at 22nd International Symposium on Algorithms and Computation, ISAAC 2011, Yokohama, Japan