1. Complex media from processing of agricultural crops for microbial fermentation;Thomsen;Appl. Microbiol. Biotechnol.,2005
2. Al Seadi T Good practice in quality management of AD residues from biogas production
3. Christensen J Hjort-Gregersen K Uellendahl H Ahring BK Baggesen DL Stockmarr A Møller HB Birkmose T 2007 Future Biogas Plants-New Systems and Their Economic Potential
4. Holm-Nielsen JB Halberg N Huntingford S Al Seadi T 1993 Joint Biogas Plant-Agricultural Advantages-circulation of N, P and K Report for the Danish Energy Agency