TY  - RPRT
TI  - Subjective perceptual methods for comparing backpacks.
AU  - S J Legg
AU  - L Perko
AU  - P Campbell
PY  - 1997
DO  - 10.1080/001401397187801
UR  - https://pubmed.ncbi.nlm.nih.gov/9336105/
ID  - 9336105
ER  -