1. Official methods of analysis of the Association of Official Analytical Chemists;Association of Official Analytical Chemists,1980
2. Effect of temperature on methane fermentation kinetics of beef cattle manure;Chen;Biotechnol. Bioeng.,1980
3. Energy requirements for anaerobic fermentation of livestock wastes;Chen,1981
4. Determination of trace amounts of C2-C2 acids in aqueous solutions by gas chromatography;DiCorcia;Anal. Chem.,1974
5. The economic feasibility of producing biogas from dairy manure in Alberta;Feddes;Agric. & Forestry Bull.,1981