TY  - RPRT
TI  - Mentor and apprentice.
AU  - H E Holling
AU  - D K McCurdy
PY  - 1969
DO  - 10.1056/nejm196902132800724
UR  - https://pubmed.ncbi.nlm.nih.gov/5762598/
ID  - 5762598
ER  -