Combining Modality Theory and Context Models. - Andreas Ratzka (PIT, 2006)

A Pattern-Based Methodology for Multimodal Interaction Design. - Andreas Ratzka; Christian Wolff 001 (TSD, 2006)

A Wizard-of-Oz Setting for Multimodal Interaction - An Approach to User-Based Elicitation of Design Patterns. - Andreas Ratzka (ISI, 2007)

Patterns for Robust and Flexible Multimodal Interaction. - Andreas Ratzka (EuroPLoP, 2008)

Explorative studies on multimodal interaction in a PDA- and desktop-based scenario. - Andreas Ratzka (ICMI, 2008)

Identifying User Interface Patterns from Pertinent Multimodal Interaction Use Cases. - Andreas Ratzka (MuC, 2008)

Steps in Identifying Interaction Design Patterns for Multimodal Systems. - Andreas Ratzka (TAMODIA/HCSE, 2008)

Patternbasiertes User Interface Design für multimodale Interaktion: Identifikation und Validierung von Patterns auf Basis einer Analyse der Forschungsliteratur und explorativer Benutzertests an Systemprototypen. - Andreas Ratzka (Verlag Werner Hülsbusch, 2010)

A Web Based Speech Transcription Workplace. - Markus Klehr; Andreas Ratzka; Thomas Roß (INTERSPEECH, 2011)

User Interface Patterns for Multimodal Interaction. - Andreas Ratzka (Trans. Pattern Lang. Program., 2013)