1[1]J.J.chen, D. Mecarty, D.Slcak, et al. Full scale studies of a simplified aerated filter (BAF) for organic and a nitrogen removal [J]. Wat. Sci. Tech.. 2000,41(4): 1-4
2[1]Batchelor S E,Coope M,Chhabra S B,et al.Celldensensity-regulated recovery of starved biofilm populations of ammonia-oxidizing bacteha[J].Appl Env Microbiol,1997,63(6):2281-2286.