TY  - RPRT
TI  - Order-N methods in self-consistent density-functional calculations.
AU  - W Hierse
AU  - EB Stechel
PY  - 1994
DO  - 10.1103/physrevb.50.17811
UR  - https://pubmed.ncbi.nlm.nih.gov/9976214/
ID  - 9976214
ER  -