TY  - RPRT
TI  - Developing effective environmental indicators--does a new dog need old tricks?
AU  - Mike Nicholson
AU  - Rob Fryer
PY  - 2002
DO  - 10.1016/s0025-326x(02)00123-6
UR  - https://pubmed.ncbi.nlm.nih.gov/12398367/
ID  - 12398367
ER  -