Standardized Testware for Internet-Based Telecommunication Services. - Bostjan Pintar; Axel Rennoch; Peter Schmitting; Stephan Schulz 002 (ERCIM News, 2009)

Using TDL for Standardised Test Purpose Definitions. - Philip Makedonski; Ilie-Daniel Gheorghe-Pop; Axel Rennoch; Finn Kristoffersen; Bostjan Pintar; Andreas Ulrich (QRS Companion, 2020)