 | 2009 |
| 4 |  | Yannis Soupionis,
George Tountas,
Dimitris Gritzalis:
Audio CAPTCHA for SIP-Based VoIP.
SEC 2009: 25-38 |
| 2008 |
| 3 |  | Yannis Soupionis,
Stelios Dritsas,
Dimitris Gritzalis:
An Adaptive Policy-Based Approach to SPIT Management.
ESORICS 2008: 446-460 |
| 2 |  | Stelios Dritsas,
Yannis Soupionis,
Marianthi Theoharidou,
Yannis Mallios,
Dimitris Gritzalis:
SPIT Identification Criteria Implementation: Effectiveness and Lessons Learned.
SEC 2008: 381-395 |
| 2005 |
| 1 |  | Lazaros Gymnopoulos,
Vassilis Tsoumas,
Yannis Soupionis,
Stefanos Gritzalis:
A generic Grid security policy reconciliation framework.
Internet Research 15(5): 508-517 (2005) |