@inproceedings{<a href="http://dblp.uni-trier.de/db/about/bibtex.html">DBLP</a>:conf/plsa/SzyperskiOM94,
  title = "Engineering a Programming Language: The Type and Class System of Sather",
  author = "Clemens A. Szyperski and Stephen M. Omohundro and Stephan Murer",
  year = "1994",
  booktitle = "Programming Languages and System Architectures",
  pages = "208-227",
  volume = "782/1994",
  doi = "10.1007/3-540-57840-4_33",
}