Averaging and Stacking Partial Least Squares Regression Models to Predict the Chemical Compositions and the Nutritive Values of Forages from Spectral Near Infrared Data oleh Mathieu Lesnoff, Donato Andueza, Charlène Barotin, Philippe Barre, Laurent Bonnal, Juan Antonio Fernández Pierna, Fabienne Picard, Philippe Vermeulen, Jean-Michel Roger