Resource Authorization in IMS with Known Multimedia Service Adaptation Capabilities. - Tomislav Grgic; Vedran Huskic; Maja Matijasevic (New Directions in Intelligent Interactive Multimedia, 2008)

Online charging in IMS for multimedia services with negotiable QoS requirements based on service agreements. - Tomislav Grgic; Maja Matijasevic (Int. J. Intell. Inf. Database Syst., 2010)

QoS-enabled IPv6 emulation environment based on the Open IMS Core. - Tomislav Grgic; Niko Boskovic; Maja Matijasevic (SoftCOM, 2011)

"Smarter" online charging for over-the-top services by introducing user context. - Tomislav Grgic; Maja Matijasevic (WMNC, 2012)

An overview of online charging in 3GPP networks: new ways of utilizing user, network, and service-related information. - Tomislav Grgic; Maja Matijasevic (Int. J. Netw. Manag., 2013)

Online Charging for Services in Communication Network Based on User-related Context ; Terećenje u stvarnom vremenu usluga u komunikacijskoj mreži temeljeno na korisničkom kontekstu. - Tomislav Grgic (2013)

Online Charging Based on Machine Context for M2M Communication in LTE. - Ranko Maric; Tomislav Grgic; Maja Matijasevic; Ignac Lovrek (WWIC, 2015)