TY  - RPRT
TI  - Solving large test-day models by iteration on data and preconditioned conjugate gradient.
AU  - M Lidauer
AU  - I Strandén
AU  - E A Mäntysaari
AU  - J Pösö
AU  - A Kettunen
PY  - 1999
DO  - 10.3168/jds.s0022-0302(99)75536-0
UR  - https://pubmed.ncbi.nlm.nih.gov/10629827/
ID  - 10629827
ER  -