@InProceedings{Axelsen09acp4is,
  author = {Axelsen,, Eyvind W. and Sørensen,, Fredrik and Krogdahl,, Stein},
  title = {A reusable observer pattern implementation using package templates},
  booktitle = {ACP4IS '09: Proceedings of the 8th workshop on Aspects, components, and patterns for infrastructure software},
  year = {2009},
  isbn = {978-1-60558-450-8},
  pages = {37--42},
  location = {Charlottesville, Virginia, USA},
  doi = {http://doi.acm.org/10.1145/1509276.1509286},
  publisher = {ACM},
  address = {New York, NY, USA},
 }