TY  - RPRT
TI  - Making the constraints visible: testing the ecological approach to interface design.
AU  - J A Effken
AU  - N G Kim
AU  - R E Shaw
PY  - 1997
DO  - 10.1080/001401397188341
UR  - https://pubmed.ncbi.nlm.nih.gov/8995046/
ID  - 8995046
ER  -