Your search returned the following 2 documents:

2. Tree models for the evolution of drug resistance
   Niko Beerenwinkel, Rolf Kaiser, Jörg Rahnenführer, Martin Däumer, Daniel Hoffmann, Joachim Selbig, and Thomas Lengauer
   In: XII International HIV Drug resistance Workshop, Los Cabos, Mexico, June 10 - June 14, 2003, S107-S107
   
1. Computing the genetic barrier
   Niko Beerenwinkel, Tobias Sing, Martin Däumer, Rolf Kaiser, and Thomas Lengauer
   In: XII International HIV Drug resistance Workshop, Tenerife, Spain, 2004, S125-S125