@inproceedings{ dav98,
  crossref = {acmht98},
  author = {Hugh C. Davis},
  title = {Referential Integrity of Links in Open Hypermedia Systems},
  pages = {207-216},
  doi = {10.1145/276627.276650},
  uri = {http://portal.acm.org/citation.cfm?id=276650}
}