TY  - RPRT
TI  - Do we know what we are doing?
AU  - L Werkö
PY  - 1991
DO  - 10.1111/j.1365-2796.1991.tb00398.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2066705/
ID  - 2066705
ER  -