Published Anaerobic treatment of sewage sludge and grease trap sludge in continuous co-digestion by Neczaj E., Bien J., Grosser A., Worwag G. and Kacprzak M. 141-148_851_NRG_02_Neczaj_14-2.pdf
Published International overview on waste to biofuel options with a focsu on waste potentials in Germany and funding incentives in the EC by Kretzschmar J., Majer S. and Kroeger M. 183-191_850_NRG_01_Kretzschmar_14-2.pdf