@misc{WittStegmannPaulsenetal.2019,
  author    = {Andreas Witt and Beeke Stegmann and Robert Paulsen and Odd Einar Haugen},
  title     = {Dealing with overlapping structures},
  edition   = {Version 3.0 beta},
  url       = {https://menota.org/HB3\_index.xml},
  year      = {2019}
}