TY  - RPRT
TI  - Ab initio calculations on large molecules using molecular fragments. Model peptide studies.
AU  - L L Shipman
AU  - R E Christoffersen
PY  - 1973
DO  - 10.1021/ja00786a009
UR  - https://pubmed.ncbi.nlm.nih.gov/4689322/
ID  - 4689322
ER  -