Ontologiebasierte Abhängigkeitsanalyse im Projektlastenheft. - Konstantin Zichler; Steffen Helke (Automotive - Safety & Security, 2017)

Delta Analyzer: Tool-based Evaluation of Modified Requirements for an Efficient Development Effort Estimation in the RFQ Process. - Konstantin Zichler; Felix Ritter; Aaron Schul; Steffen Helke (FedCSIS (Position Papers), 2019)

R2BC: Tool-Based Requirements Preparation for Delta Analyses by Conversion into Boilerplates. - Konstantin Zichler; Steffen Helke (Software Engineering (Workshops), 2019)