Stensiltrykk serie A. L.nr. 73/73. Nr 466. Paper to be presentet at the VIIIth International Congress of Agricultural Engineering (CIGR); Flevohof, the Netherlands, September 1974.
Publisher
Landbruksteknisk Institutt
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal