(2007) artificial intelligence; with jennifer spenader and maartje schreuder; rijksuniversiteit groningen

(2004) semantik (semantics); university of dortmund

(2003) dynamische semantik und dialogtheorie (dynamic semantics and dialogue theory); university of bielefeld

(2003) textual coherence; university of dortmund

(2003) theories of dialogue; trinity college, dublin

(2002) theories of dialogue; university of bielefeld

(2002) task oriented communication; university of bielefeld

(2002) approaches to dialogue; university of trento

(2001) task oriented communication; university of bielefeld

(2001) latex; university of bielefeld

(2001) temporal logics; university of bielefeld

(2000) dynamic predicate logic; university of bielefeld

(2000) heterogenous logic; university of bielefeld