Esteban Feuerstein Mauricio Marín Michel Mizrahi Veronica Gil Costa Ricardo A. Baeza-Yates Two-Dimensional Distributed Inverted Files. 206-213 2009 SPIRE http://dx.doi.org/10.1007/978-3-642-03784-9_20 conf/spire/2009 db/conf/spire/spire2009.html#FeuersteinMMCB09