Bishoksan Kafle, John P. Gallagher. Tree automata-based refinement with application to Horn clause verification. Verification, Model Checking, and Abstract Interpretation – 16th International Conference, VMCAI 2015, Mumbai, India, January 12-14, 2015. Proceedings, Lecture Notes in Computer Science, Vol. 8931, pages 209–226, Springer, January 2015. VMCAI, Mumbai.