Djamal Belazzougui Fabiano C. Botelho Martin Dietzfelbinger Hash, Displace, and Compress. 682-693 2009 ESA http://dx.doi.org/10.1007/978-3-642-04128-0_61 conf/esa/2009 db/conf/esa/esa2009.html#BelazzouguiBD09