@misc{indiciae4b4f3a990f04,
  title = {[Cooperation, community practice and practice community].},
  author = {R Ratzel},
  year = {1995},
  doi = {10.1007/bf02264917},
  url = {https://pubmed.ncbi.nlm.nih.gov/8579460/},
  note = {Source identifier: 8579460}
}