@inproceedings{ expressivereusableworkflowtemplates,
  author = {Yolanda Gil and Paul Groth and Varun Ratnakar and Christian Fritz},
  url = { gil-etal-escience09.pdf },
  booktitle = {Proceedings of the Fifth IEEE International Conference on e-Science, Oxford, UK, December 9-11},
  title = {Expressive Reusable Workflow Templates},
  year = {2009},
  keywords = {Workflows}
}