1 Subjects: “...digestive physiology...”

2 Subjects: “...anaerobic digestion, inhibition, organic farming, action research, denitrification, investments...”

3 Subjects: “...biodiesel, diesel, anaerobic digestion, diesel engine, mathematical modeling, catalyst...”

4 Subjects: “...digestibility...”

5 Subjects: “...anaerobic digestion...”

6 Subjects: “...anaerobic digestion...”

7 Subjects: “...oxidative digestion...”

8 Subjects: “...anaerobic digestion...”

9 Subjects: “...anaerobic digestion and composting...”