TY  - RPRT
TI  - Internal packing and protein structural classes.
AU  - J W Ponder
AU  - F M Richards
PY  - 1987
DO  - 10.1101/sqb.1987.052.01.049
UR  - https://pubmed.ncbi.nlm.nih.gov/2841069/
ID  - 2841069
ER  -