Jing-yu Hou Ben-yu Guo Chebyshev pseudospectral-finite element method for the three-dimensional unsteady Navier-Stokes equation. 209-244 1999 101 Applied Mathematics and Computation 2-3 http://dx.doi.org/10.1016/S0096-3003(98)00041-1 db/journals/amc/amc101.html#HouG99