@techreport{CS-RR-15-06,
  title = "Simpler Editing of Spatially-Connected Graph Hierarchies using Zipping Algorithms",
  author = "Stuart Golodetz and Irina Voiculescu and Stephen Cameron",
  year = "2015",
  address = "Oxford, UK",
  institution = "Department of Computer Science",
  number = "CS-RR-15-06",
  pages = "25",
}