TY  - RPRT
TI  - Approximating prediction error variances for multiple trait sire evaluations.
AU  - S A Greenhalgh
AU  - R L Quaas
AU  - L D van Vleck
PY  - 1986
DO  - 10.3168/jds.s0022-0302(86)80742-1
UR  - https://pubmed.ncbi.nlm.nih.gov/3805460/
ID  - 3805460
ER  -