Afonso Ferreira, José D. P. Rolim, Horst D. Simon, Shang-Hua Teng: Solving Irregularly Structured Problems in Parallel, 5th International Symposium, IRREGULAR '98, Berkeley, California, USA, August 9-11, 1998, Proceedings. Lecture Notes in Computer Science 1457, Springer 1998, ISBN 3-540-64809-7