A distributed and policy-free general-purpose shared window system. - Thomas Gutekunst; Daniel Bauer 001; Germano Caronni; Hasan; Bernhard Plattner (IEEE/ACM Trans. Netw., 1995)

Charging Distributed Services of a Computational Grid Architecture. - Burkhard Stiller; Jan Gerke; Placi Flury; Peter Reichl; Hasan (CCGRID, 2001)

Open interfaces and databases of a modular Internet charge calculation and accounting system. - Burkhard Stiller; Jan Gerke; Hasan; Peter Reichl; Placi Flury (GLOBECOM, 2001)

Retrospective Pricing Models for Internet Services: Solving the Flat Rate Dilemma "à la Flensburg". - Peter Reichl; Burkhard Stiller; Hongguang Ma; Hasan; Jan Gerke; Placi Flury (MMB, 2001)

Charging and accounting in high-speed networks. - Burkhard Stiller; Peter Reichl; Jan Gerke; Hasan; Placi Flury (Future Gener. Comput. Syst., 2003)

Extensions of AAA for future IP networks. - Pascal Kurtansky; Hasan; Burkhard Stiller; Antonio Cuevas; Davinder Singh; Sebastian Zander; Jürgen Jähnert; Jie Zhou (WCNC, 2004)

A Generic Model and Architecture for Automated Auditing. - Hasan; Burkhard Stiller (DSOM, 2005)

Non-repudiation of consumption of mobile Internet services with privacy support. - Hasan; Burkhard Stiller (WiMob (2), 2005)

The 'pure-IP' Moby Dick 4G architecture. - Jürgen Jähnert; Jie Zhou; Rui L. Aguiar; Victor Marques 001; Michelle Wetterwald; Eric Melin; José Ignacio Moreno; Antonio Cuevas; Marco Liebsch; Ralf Schmitz; Piotr Pacyna; Telemaco Melia; et al. (Comput. Commun., 2005)

AURIC: A Scalable and Highly Reusable SLA Compliance Auditing Framework. - Hasan; Burkhard Stiller (DSOM, 2007)

A4C Support for Commercialization of Next-Generation Grid Services. - Hasan; Péter Rácz; Cristian Morariu; David Hausheer; Burkhard Stiller (ERCIM News, 2007)

A generic auditing framework for compliance verification of internet service level agreements. - Hasan (2007)

Monitoring of SLA compliances for Hosted Streaming Services. - Hasan; Péter Rácz; Burkhard Stiller (Integrated Network Management, 2009)

Operation Method for Protection Devices at the Primary Feeders with New Energy Sources Using EMTDC/PSCAD. - Hasan; Dae-Seok Rho; Chanhyeok Kim; Yongpeel Wang (FGIT-GDC, 2011)

SLO Auditing Task Analysis, Decomposition, and Specification. - Hasan; Burkhard Stiller (IEEE Trans. Netw. Serv. Manag., 2011)