Hassan, O., Hassan, O., Morgan, K., & Weatherill, N. (2007). Unstructured mesh methods for the solution of the unsteady compressible flow equations with moving boundary components. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 365(1859), pp. 2531-2552. doi:10.1098/rsta.2007.2020

Hassan, Oubay, O. Hassan, K. Morgan, and N. Weatherill. "Unstructured Mesh Methods for the Solution of the Unsteady Compressible Flow Equations With Moving Boundary Components." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 365, no. 1859 (2007): 2531-2552.

Hassan, Oubay, O. Hassan, K. Morgan, and N. Weatherill. "Unstructured Mesh Methods for the Solution of the Unsteady Compressible Flow Equations With Moving Boundary Components." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 365.1859 (2007): 2531-2552.