TY  - RPRT
TI  - Density-matrix electronic-structure method with linear system-size scaling.
AU  - X Li
AU  - RW Nunes
AU  - D Vanderbilt
PY  - 1993
DO  - 10.1103/physrevb.47.10891
UR  - https://pubmed.ncbi.nlm.nih.gov/10005210/
ID  - 10005210
ER  -