- CSB - MetaPress - Google - Bing - Yahoo
 | 2009 | |
|---|---|---|
| c17 |      | Ralf Ackermann: Using context information to enhance the functionality and usability of enterprise information systems. GI Jahrestagung 2009: 237 |
| 2008 | ||
| c16 |  | Jons-Tobias Wamhoff, Eberhard Grummt, Ralf Ackermann: Routing Mechanism for Secure, Distributed Discovery Services for Global Auto-ID Networks. IWRT 2008: 136-141 |
| 2007 | ||
| c15 | | Eberhard Grummt, Ralf Ackermann: Proof of Possession: Using RFID for Large-Scale Authorization Management. AmI Workshops 2007: 174-182 |
| 2005 | ||
| c14 | | Luka Divac-Krnic, Ralf Ackermann: Security-Related Issues in Peer-to-Peer Networks. Peer-to-Peer Systems and Applications 2005: 529-545 |
| 2004 | ||
| c13 | | Manuel Görtz, Ralf Ackermann, Ralf Steinmetz: Enhanced SIP Communication Services by Context Sharing. EUROMICRO 2004: 272-279 |
| c12 | | Manuel Görtz, Ralf Ackermann, Johannes Schmitt, Ralf Steinmetz: Context-aware Communication Services: A Framework for Building Enhanced IP Telephony Services. ICCCN 2004: 535-540 |
| c11 | | Manuel Görtz, Ralf Ackermann, Ralf Steinmetz: The Digital Call Assistant: Determine Optimal Time Slots for Calls. MIPS 2004: 230-241 |
| 2003 | ||
| b1 | | Ralf Ackermann: Gateways and components for supplementary IP telephony services in heterogeneous environments. Darmstadt University of Technology 2003 |
| c10 | | Manuel Görtz, Ralf Ackermann, Andreas Mauthe, Ralf Steinmetz: Using Context Information to Avoid Service Interactions in IP Telephony. MIPS 2003: 340-351 |
| 2002 | ||
| j2 | | Jana Dittmann, Martin Steinebach, Petra Wohlmacher, Ralf Ackermann: Digital Watermarks Enabling E-Commerce Strategies: Conditional and User Specific Access to Services and Resources. EURASIP J. Adv. Sig. Proc. 2002(2): 174-184 (2002) |
| c9 | | Manuel Görtz, Ralf Ackermann, Martin Karsten, Ralf Steinmetz: Using a Multi-Layer Approach to Tackle the Service Interaction Problem in Telephony Scenarios. EUROMICRO 2002: 207-215 |
| 2001 | ||
| j1 | | Utz Roedig, Ralf Ackermann, Ralf Steinmetz: IP-Telefonie und Firewalls, Probleme und Lösungen. Praxis der Informationsverarbeitung und Kommunikation 24(1): 32-40 (2001) |
| c8 | | Ralf Ackermann, Markus Schumacher, Utz Roedig, Ralf Steinmetz: Vulnerabilities and Security Limitations of current IP Telephony Systems. Communications and Multimedia Security 2001 |
| c7 | | Jana Dittmann, Petra Wohlmacher, Ralf Ackermann: Conditional Access for Business and M-Commerce Applications using Annotation Watermarks. Communications and Multimedia Security 2001 |
| 2000 | ||
| c6 | | Ralf Ackermann, Vasilios Darlagiannis, Utz Roedig, Ralf Steinmetz: Using DMIF for Abstracting from IP-Telephony Signaling Protocols. IDMS 2000: 104-115 |
| c5 | | Ralf Ackermann, Utz Roedig, Michael Zink, Carsten Griwodz, Ralf Steinmetz: Associating network flows with user and application information. ACM Multimedia Workshops 2000: 149-152 |
| 1999 | ||
| c4 | | Ralf Ackermann, Jörg Pommnitz, Lars C. Wolf, Ralf Steinmetz: MBone2Tel - Telephone Users Meeting the MBone. IDMS 1999: 121-132 |
| c3 | | Christoph Rensing, Utz Roedig, Ralf Ackermann, Lars C. Wolf, Ralf Steinmetz: VDMFA, eine verteilte dynamische Firewallarchitektur für Multimedia-Dienste. Kommunikation in Verteilten Systemen 1999: 144-157 |
| 1998 | ||
| c2 | | Thomas Kubela, Ralf Ackermann: Agent-Q - das Diagnose- und Datenqualitätssystem (Ein Praxisbericht). Workshop Integration heterogener Softwaresysteme 1998: 55-67 |
| 1981 | ||
| c1 | | G. Neumann, Ralf Ackermann, Winfried Grünewald: Messungen zum Kommunikationsaufwand für Prozesse in einem lokalen Rechnernetz: Erfahrungen aus einer Implementation. Implementierungssprachen für nichtsequentielle Programmsysteme 1981: 186-208 |
Colors in the list of coauthors
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