TY  - RPRT
TI  - The validity of verbal protocols.
AU  - J E Russo
AU  - E J Johnson
AU  - D L Stephens
PY  - 1989
DO  - 10.3758/bf03202637
UR  - https://pubmed.ncbi.nlm.nih.gov/2811673/
ID  - 2811673
ER  -