Two-phase anaerobic digestion for enhanced stabilization and methanation of sewage sludge /

"ILENR/AE-92/02."

Use and disposal of wastewater sludge in Illinois : final report /

"Contract: EA99"

Periodicity of the blue-green algae and their effect on the efficiency of manure-disposal lagoons /

"In cooperation with National Botanic Gardens Lucknow, India."