DahlOB98'

BibTeX

@article{DBLP:journals/njc/DahlOB98,
  author    = {Ole-Johan Dahl and
               Olaf Owe and
               Tore J. Bastiansen},
  title     = {Subtyping and Constructive Specification},
  journal   = {Nord. J. Comput.},
  volume    = {5},
  number    = {1},
  year      = {1998},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}