Luc Dartois, Charles Paperman. Alternation Hierarchies of First Order Logic with Regular Predicates. In Adrian Kosowski, Igor Walukiewicz, editors, Fundamentals of Computation Theory - 20th International Symposium, FCT 2015, Gdańsk, Poland, August 17-19, 2015, Proceedings. Volume 9210 of Lecture Notes in Computer Science, pages 160-172, Springer, 2015. [doi]
Abstract is missing.