Conference Abbreviations and Acronyms
- ORAHSOperational Research Applied To Health Services
- ORPAOregon Recreation & Park Association
- ORPAOregon Recreation and Park Association
- ORTCOverala Roadmap Technology Characteristics
- OSOral Session
- OSOrganizedhsession
- OSOrganisational Semiotics
- OSABOfcom Spectrum Advisory Board
- OSBAOhit School Boards Association
- OSBCOpen Source Business Conference
- OSDOCOpen Source and Design of Communication
- OSSOpen Source Systems
- OSSOpen Source Symposium
- OSS4BOpen Source Software for Business
- OSSIEOpen Source Software In Education
- OSSSOpen Source Systems
- OSUMOntario Small Urban Municipalities
- OSWCOpen Source World Conference
- OSWIROpen Source Web Information Retrieval
- OTOffshore Technology
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