@INPROCEEDINGS{Lau&Ntalamagkas:08,
 author = {K.-K. Lau and I. Ntalamagkas},
 title = {A compositional approach to active and passive components},
 booktitle = {Proc. 34th EUROMICRO Conference on Software Engineering
              and Advanced Applications},
 year = {2008},
 pages = {76-83},
 publisher = {IEEE}
}