OvergaardP98'

@inproceedings{DBLP:conf/uml/OvergaardP98,
  author    = {Gunnar {\"O}vergaard and
               Karin Palmkvist},
  title     = {A Formal Approach to Use Cases and Their Relationships},
  booktitle = {UML},
  year      = {1998},
  pages     = {406-418},
  ee        = {http://dx.doi.org/10.1007/978-3-540-48480-6_31},
  crossref  = {DBLP:conf/uml/1998},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/uml/1998,
  editor    = {Jean B{\'e}zivin and
               Pierre-Alain Muller},
  title     = {The Unified Modeling Language, UML'98: Beyond
               the Notation, First International Workshop, Mulhouse, France,
               June 3-4, 1998, Selected Papers},
  booktitle = {UML},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {1618},
  year      = {1999},
  isbn      = {3-540-66252-9},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}