Zoran Constantinescu Pavel Petrovic Q<sup>2</sup>ADPZ<sup>*</sup> an open source, multi-platform system for distributed computing. 13-20 2002 9 ACM Crossroads 2 http://doi.acm.org/10.1145/904067.904071 db/journals/crossroads/crossroads9.html#ConstantinescuP02