TY - RPRT TI - Dirac's equation and its implications for density functional theory based calculations of materials containing heavy elements AU - Rehn, Daniel A. AU - Wills, John M. AU - Battelle, Torey E. AU - Mattsson, Ann E. PY - 2020 DO - 10.1103/physrevb.101.085114 UR - https://www.osti.gov/biblio/1819136 ID - 1819136 ER -