TY - RPRT TI - Lipase and protease extraction from activated sludge. AU - Amare Gessesse AU - Thomas Dueholm AU - Steffen B Petersen AU - Per H Nielsen PY - 2003 DO - 10.1016/s0043-1354(03)00241-0 UR - https://pubmed.ncbi.nlm.nih.gov/12867331/ ID - 12867331 ER -