1. So sollten Presschnitzel siliert werden;Beckoff;DLG-Mitteilungen,1981
2. Sulla macerazione rustica della canapa;Carbone;Stazione Sperimentale Agraria Italiana,1917
3. Basic types of fermentation of pulp of different origin and its importance for the evaluation of silage quality;Flám;Zivocisna Vyroba, Praha,1977