David T. Liu Michael J. Franklin Ghaleb Abdulla Jim Garlick Marcus Miller Data-Preservation in Scientific Workflow Middleware. 49-58 2006 conf/ssdbm/2006 SSDBM http://doi.ieeecomputersociety.org/10.1109/SSDBM.2006.18 db/conf/ssdbm/ssdbm2006.html#LiuFAGM06