TY  - RPRT
TI  - PASS: simple molecular graphics system for personal computers.
AU  - G Chelvanayagam
PY  - 1990
DO  - 10.1016/0263-7855(90)80004-y
UR  - https://pubmed.ncbi.nlm.nih.gov/2282360/
ID  - 2282360
ER  -