Udo A. Ernst David Rotermund Klaus Pawelzik An Algorithm for Fast Pattern Recognition with Random Spikes. 399-406 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3175&spage=399 2004 conf/dagm/2004 DAGM-Symposium db/conf/dagm/dagm2004.html#ErnstRP04