An architecture supporting adaptation and evolution in fourth generation mobile communication systems. - Christian Prehofer; Wolfgang Kellerer; Robert Hirschfeld; Hendrik Berndt; Katsuya Kawamura (J. Commun. Networks, 2002)

Dynamic Service Adaptation for Runtime System Extensions. - Robert Hirschfeld; Katsuya Kawamura; Hendrik Berndt (WONS, 2004)

Charging, accounting and billing management schemes in mobile telecommunication networks and the internet. - Maria Koutsopoulou; Alexandros Kaloxylos; Athanassia Alonistioti; Lazaros F. Merakos; Katsuya Kawamura (IEEE Commun. Surv. Tutorials, 2004)

Dynamic service adaptation. - Robert Hirschfeld; Katsuya Kawamura (Softw. Pract. Exp., 2006)