Flux-upwind stabilization of the discontinuous Petrov–Galerkin formulation with Lagrange multipliers for advection-diffusion problemsPaola Causin, Riccardo Sacco and Carlo L. BottassoESAIM: M2AN, 39 6 (2005) 1087-1114DOI: https://doi.org/10.1051/m2an:2005050