1. M. Henze, W. Gujer, T. Mino, M.C.M. van Loosdrecht, Activated Sludge Models ASM1, ASM2, ASM2d, and ASM3, IWA Scientific and Technical Report No. 9, IWA Publishing, London, UK, 2000.
2. M. Henze, C.P.L. Grady Jr., W. Gujer, G.V.R. Marais, T. Matsuo, Activated Sludge Model No. 1. Scientific and Technical Report No. 1, IAWPRC, London, 1987.
3. Activated Sludge Model No. 3;Gujer;Water Sci. Technol.,1999
4. Activated sludge wastewater treatment plant modelling and simulation: state of the art;Gernaey;Environ. Model. Software,2004
5. Substrate flux into storage and growth in relation to activated sludge modelling;Krishna;Water Res.,1999