@article{
  author = {Shahandeh, Nader, Takdastan, Afshin, solimani babarsad, mohsen, Gayem ahwaz, Sara},
  title = {Study of nitrogen and phosphorus removal by SBR seven-step system of anoxic and aerobic and anaerobic
Operation of municipal wastewater in different situations},
  journal = {Water Engineering},
  year = {2016},
  volume = {4},
  issue = {1},
  pages = {45-55},
  doi = {},
  url = {https://sanad.iau.ir/fa/Article/1024336}
}