S. Bu, J. Huang, and M. Minion. AMATH'09 Proceedings of the 15th American Conference on Applied Mathematics, page 95--100. World Scientific and Engineering Academy and Society (WSEAS), (2009)
J. Alastruey, K. Parker, S. Sherwin, and others. 11th International Conference on Pressure Surges, page 401--442. Virtual PiE Led t/a BHR Group Lisbon, Portugal, (2012)