@article{Herres2006,
  author    = {J{\"u}rgen Herres},
  title     = {Der K{\"o}lner Kommunistenprozess von 1852},
  url       = {http://edoc.bbaw.de/oa/articles/reYt5OP3og5IA/PDF/23ZXA0W5qqDLQ.pdf},
  year      = {2006},
}