TY  - RPRT
TI  - Mixed ultrasoft/norm-conserved pseudopotential scheme.
AU  - K Stokbro
PY  - 1996
DO  - 10.1103/physrevb.53.6869
UR  - https://pubmed.ncbi.nlm.nih.gov/9982109/
ID  - 9982109
ER  -