Henri E. Bal Niels Drost Roelof Kemp Jason Maassen Rob van Nieuwpoort C. van Reeuwijk Frank J. Seinstra Ibis: Real-world problem solving using real-world grids. 1-8 2009 IPDPS http://dx.doi.org/10.1109/IPDPS.2009.5160960 conf/ipps/2009 db/conf/ipps/ipdps2009.html#BalDKMNRS09