1. Official methods of analysis;AOAC,1980
2. Losses in orange peel silage;Ashbell;Agric. Wastes,1984
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4. Wie entstehen Silierverluste? Behälter und Verluste;Honig;DLG Mitteilungen,1980
5. Trials in ensiling lucerne with various preservatives (in Italian);Meregalli;Riv. Zootec. Milano,1963