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4. ASAE Standards 47th ed., 2003b. S358.2—Moisture measurement-forages. American Society of Agricultural Engineers, St Joseph, MI. pp. 595.
5. ASAE Standards 47th ed., 2003c. S269.4—Cubes, pellets and crumbles—definitions and methods for determining density, durability and moisture content. American Society of Agricultural Engineers, St Joseph, MI. pp. 567–569.