@misc{indiciae414f672c66f3,
  title = {[Pathogenic viruses in activated sludge: problems and quantification].},
  author = {B Heisig and J M Lopez Pila},
  year = {1985},
  url = {https://pubmed.ncbi.nlm.nih.gov/2994207/},
  note = {Source identifier: 2994207}
}