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                           methods with discontinuous weighting functions: Application to the Streamline-Upwind
                           Procedure.” Finite Elements in Fluids, R. H. Gallagher et al., eds., Wiley, Chichester,
                           U.K., Vol. 4, pp. 46-65.Hughes, T. J. R. and Brooks, A. N. (1982). “A theoretical
                           framework for Petrov-Galerkin methods with discontinuous weighting functions: Application
                           to the Streamline-Upwind Procedure.” Finite Elements in Fluids, R. H. Gallagher et
                           al., eds., Wiley, Chichester, U.K., Vol. 4, pp. 46-65.
