TY  - RPRT
TI  - Scientific developments lead to new control problems.
AU  - E M NELSON
PY  - 1956
DO  - 10.1111/j.1753-4887.1956.tb01505.x
UR  - https://pubmed.ncbi.nlm.nih.gov/13309862/
ID  - 13309862
ER  -