Towards a variable frame rate speech transmission system with frame selection by time-domain segmentation - a status report. - Wolfgang J. Hess; Josef Heiler (ICASSP, 1978)

Optimized frame selection for variable frame rate synthesis. - Josef Heiler (ICASSP, 1982)

Minimierung des Speicherbedarfs von Sprachausgabesystemen durch optimierte Parameterapproximation. - Josef Heiler (1985)

Evaluation of the security of distributed IT systems through ITSEC/ITSEM: experiences and findings. - Ian Uttridge; Gualtiero Bazzana; Massimo Giunchi; Gemma Deler; Stéphane Geyres; Josef Heiler (SEC, 1996)