Exploiting Redundancy in Natural Language to Penetrate Bayesian Spam Filters. - Christoph Karlberger; Günther Bayler; Christopher Kruegel; Engin Kirda (WOOT, 2007)

Efficient Detection of Split Personalities in Malware. - Davide Balzarotti; Marco Cova; Christoph Karlberger; Engin Kirda; Christopher Kruegel; Giovanni Vigna (NDSS, 2010)