TY  - RPRT
TI  - Efficient Low-Order Refined Preconditioners for High-Order Matrix-Free Continuous and Discontinuous Galerkin Methods
AU  - Pazner, Will E.
PY  - 2020
DO  - 10.1137/19m1282052
UR  - https://www.osti.gov/biblio/1768376
ID  - 1768376
ER  -