TY  - RPRT
TI  - Quantity-distance protection.
AU  - H M Roylance
PY  - 1968
DO  - 10.1111/j.1749-6632.1968.tb11962.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5257524/
ID  - 5257524
ER  -