1. Lecture Notes in Computer Science;L. Hluchy,2004
2. Globus toolkit 4 homepage,
http://www.globus.org/GT4/
3. FreeFluo workflow enactor,
http://freefluo.sourceforge.net/
4. MyGRID project homepage,
http://www.mygrid.org.uk
5. XScufl language reference,
http://taverna.sourceforge.net/docs/xscuflspecification.html