Alerting in a Digital Library Environment: Do Channels Meet the Requirements? - Daniel Faensen; Annika Hinze; Heinz Schweppe (ECDL, 1998)

A Unified Model of Internet Scale Alerting Services. - Annika Hinze; Daniel Faensen (ICSC, 1999)

Database Systems as Middleware-Events, Notification, Messages. - Heinz Schweppe; Annika Hinze; Daniel Faensen (ADBIS-DASFAA, 2000)

Hermes: a notification service for digital libraries. - Daniel Faensen; Lukas Faulstich; Heinz Schweppe; Annika Hinze; Alexander Steidinger (JCDL, 2001)