Direct Minimization of the least-squares spectral element functional - Part I: Direct solver. - Wijnand Hoitinga; Roel de Groot; Marcel Kwakkel; Marc I. Gerritsma (J. Comput. Phys., 2008)

A discontinuous Galerkin finite-element method for a 1D prototype of the Boltzmann equation. - Wijnand Hoitinga; E. H. van Brummelen (J. Comput. Phys., 2011)