Handling Backtracking in Web Applications. - Bettina Biel; Matthias Book; Volker Gruhn; Dirk Peters; Clemens Schäfer (EUROMICRO, 2004)

Towards Usability-Improving Design Patterns for Mobile Client-Server Computing. - Bettina Biel; Volker Gruhn (EuroPLoP, 2006)

Patterns of trust in ubiquitous environments. - Bettina Biel; Thomas Grill; Volker Gruhn (MoMM, 2008)

Towards a Method for Analyzing Architectural Support Levels of Usability. - Bettina Biel; Volker Gruhn (WICSA/ECSA, 2009)

A Pattern Approach to Mobile Interaction Design (Die Verwendung von Patterns beim Entwerfen mobiler Applikationen). - Thomas Grill; Bettina Biel; Volker Gruhn (it Inf. Technol., 2009)

Analyzing the Architectural Support of Usability. - Bettina Biel; Volker Gruhn (EUROMICRO-SEAA, 2010)

Usability-improving mobile application development patterns. - Bettina Biel; Volker Gruhn (EuroPLoP, 2010)

Exploring the benefits of the combination of a software architecture analysis and a usability evaluation of a mobile application. - Bettina Biel; Thomas Grill; Volker Gruhn (J. Syst. Softw., 2010)

A Framework for Building and Operating Context-Aware Mobile Applications. - Aaratee Shrestha; Bettina Biel; Tobias Griebe; Volker Gruhn (MOBILWARE, 2011)

Towards Pattern-based Generic Interaction Scenarios. - Bettina Biel; Stefan Seitz; Volker Gruhn (ANT/MobiWIS, 2011)

Analyse der softwarearchitektonischen Unterstützung der Usability mobiler Anwendungen. - Bettina Biel (2017)