1. Dagman engine. URL http://www.cs.wisc.edu/condor/dagman.
2. E. Deelman, J. Blythe, et al. Pegasus: Planning for execution in grids, Tech. rep., GriPhyN Project (2002).
3. Taverna: a tool for the composition and enactment of bioinformatics workflows;Oinn;Bioinformatics Journal, London- UK,2004
4. Taverna: a tool for building and running workflows of services;Hull;Nucleic Acids Research,2006
5. Visual grid workflow in triana;Taylor;Journal of Grid Computing, Netherlands,2006