Systemic IT Project Management: A Rational Way to Manage Irrationalities in IT Projects? - Andreas Drechsler; Peter Kalvelage; Tobias Trepper (PRET, 2010)

The Potential of Niklas Luhmann's General Theory of Social Systems for Research on Agile Methodologies. - Andreas Drechsler; Tobias Trepper (AMCIS, 2014)

Fundierung der Konstruktion agiler Methoden: Anpassung, Instanziierung und Evaluation der Methode PiK-AS. - Tobias Trepper (Springer Gabler, 2015)