TY  - RPRT
TI  - Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set.
AU  - G Kresse
AU  - J Furthmüller
PY  - 1996
DO  - 10.1103/physrevb.54.11169
UR  - https://pubmed.ncbi.nlm.nih.gov/9984901/
ID  - 9984901
ER  -