Qing Zhang Chaoyi Pang David P. Hansen On Multidimensional Wavelet Synopses for Maximum Error Bounds. 646-661 2009 DASFAA http://dx.doi.org/10.1007/978-3-642-00887-0_57 conf/dasfaa/2009 db/conf/dasfaa/dasfaa2009.html#ZhangPH09