A Conversational Natural Language Understanding Information System for Multiple Languages. - Marion Mast; Thomas Ross; Henrik Schulz 002; Heli Harrikari; Vasiliki Demesticha; Lazaros Polymenakos; Yannis Vamvakoulas; Jan Stadermann (NLDB, 2001)

Different Approaches to Build Multilingual Conversational Systems. - Marion Mast; Thomas Ross; Henrik Schulz 002; Heli Harrikari (TSD, 2002)

Conversational natural language understanding interfacing city event information. - Marion Mast; Thomas Ross; Henrik Schulz 002; Heli Harrikari; Vasiliki Demesticha; Lazaros Polymenakos; Yannis Vamvakoulas; Jan Stadermann (Data Knowl. Eng., 2002)

A user interface framework for kinetic typography-enabled messaging applications. - Gregor Möhler; Martin Osen; Heli Harrikari (CHI Extended Abstracts, 2004)