網址: https://www.researchgate.net/profile/Ruping-Mo/publication/249622028/figure/fig2/AS:669954282106890@1536740956358/a-EOF1-and-b-EOF2-of-OLR-represented-as-regressions-of-pentad-OLR-onto-the-respective.png
網址2: https://www.researchgate.net/figure/a-EOF1-and-b-EOF2-of-OLR-represented-as-regressions-of-pentad-OLR-onto-the-respective_fig2_249622028
