TY  - RPRT
TI  - On-line performance assessment using rating scales.
AU  - J Stahl
AU  - R Shumway
AU  - B Bergstrom
AU  - A Fisher
PY  - 1997
UR  - https://pubmed.ncbi.nlm.nih.gov/9661720/
ID  - 9661720
ER  -