TY  - RPRT
TI  - Hands that help--but how?
AU  - C A Durr
PY  - 1971
DO  - 10.1111/j.1744-6198.1971.tb00043.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5211379/
ID  - 5211379
ER  -