TY  - RPRT
TI  - A three-dimensional electron pencil-beam algorithm.
AU  - H M Kooy
AU  - H Rashid
PY  - 1989
DO  - 10.1088/0031-9155/34/2/007
UR  - https://pubmed.ncbi.nlm.nih.gov/2928387/
ID  - 2928387
ER  -