A Modeling and Execution Environment for Distributed Scientific Workflows. - Ilkay Altintas; Sangeeta Bhagwanani; David Buttler; Sandeep Chandra; Zhengang Cheng; Matthew Coleman; Terence Critchlow; Amarnath Gupta; Wei Han; Ling Liu 001; Bertram Ludäscher; Calton Pu; et al. (SSDBM, 2003)