The EURATOM automatic indexing project. - Hermann Fangmeyer; Gerhard Lustig (IFIP Congress (2), 1968)

Zur Pilotanwendung AIR/PHYS der automatischen Indexierung. - Gerhard Lustig (Sprachverarbeitung in Information und Dokumentation, 1985)

The Automatic Indexing System AIR/PHYS – From Research to Application. - Peter Biebricher; Norbert Fuhr; Gerhard Lustig; Michael Schwantner; Gerhard Knorz (SIGIR, 1988)

AIR/X - A rule-based multistage indexing system for Iarge subject fields. - Norbert Fuhr; Stephan Hartmann 004; Gerhard Lustig; Michael Schwantner; Kostas Tzeras; Gerhard Knorz (RIAO, 1991)