[1]	Ingo Feinerer. A Text Mining Framework in R and Its Applications. PhD thesis, Department of Statistics and Mathematics, Vienna University of Economics and Business, October 2008. [ bib | http ]
[2]	Ingo Feinerer. A Formal Treatment of UML Class Diagrams as an Efficient Method for Configuration Management. PhD thesis, Theory and Logic Group, Institute of Computer Languages, Vienna University of Technology, March 2007. [ bib | .pdf ]