TY  - RPRT
TI  - Technical note: computing tests of fixed effects in a restricted class of mixed models.
AU  - R J Boik
AU  - M W Tess
AU  - C Todd
PY  - 1993
DO  - 10.2527/1993.71151x
UR  - https://pubmed.ncbi.nlm.nih.gov/8454552/
ID  - 8454552
ER  -