Alain Denise Mireille Régnier Mathias Vandenbogaert Assessing the Statistical Significance of Overrepresented Oligonucleotides. 85-97 2001 conf/wabi/2001 WABI http://link.springer.de/link/service/series/0558/bibs/2149/21490085.htm db/conf/wabi/wabi2001.html#DeniseRV01