Unstructured Interaction: Integrating Informal Handwritten Knowledge into Business Processes. - Felix Heinrichs (LWA, 2009)

Letras: an architecture and framework for ubiquitous pen-and-paper interaction. - Felix Heinrichs; Jürgen Steimle; Daniel Schreiber; Max Mühlhäuser (EICS, 2010)

Pen-and-Paper Interaction for Everyday Tasks. - Felix Heinrichs; Daniel Schreiber; Max Mühlhäuser (MuC (Workshopband), 2010)

W5: a meta-model for pen-and-paper interaction. - Felix Heinrichs; Daniel Schreiber; Jochen Huber; Max Mühlhäuser (EICS, 2011)

The hybrid shopping list: bridging the gap between physical and digital shopping lists. - Felix Heinrichs; Daniel Schreiber; Johannes Schöning (Mobile HCI, 2011)

Toward a theory of interaction in mobile paper-digital ensembles. - Felix Heinrichs; Daniel Schreiber; Jochen Huber; Max Mühlhäuser (CHI, 2012)

Mobile Pen and Paper Interaction. - Farid Hamza Felix Heinrichs (2015)