TY - RPRT TI - Lumping Techniques for Mixed Finite Element Diffusion Discretizations AU - Maginot, P. G. AU - Brunner, T. A. PY - 2018 DO - 10.1080/23324309.2018.1461653 UR - https://www.osti.gov/biblio/1469467 ID - 1469467 ER -