TY - GEN AU - Vaccari,D A AU - Fagedes,T AU - Longtin,J TI - Calculation of mean cell residence time for unsteady-state activated sludge systems SN - 0006-3592 PY - 2012///1002 N1 - Publication Type: Journal Article UR - https://doi.org/10.1002/bit.260270519 ER -