TY  - RPRT
TI  - Direct estimation: effect of methodological factors on scale type.
AU  - H Montgomery
PY  - 1975
DO  - 10.1111/j.1467-9450.1975.tb00159.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1138339/
ID  - 1138339
ER  -