TY  - RPRT
TI  - Extending the trend vector: the trend matrix and sample-based partial least squares.
AU  - R P Sheridan
AU  - R B Nachbar
AU  - B L Bush
PY  - 1994
DO  - 10.1007/bf00126749
UR  - https://pubmed.ncbi.nlm.nih.gov/7964931/
ID  - 7964931
ER  -