Periodical Abbreviations and Acronyms
- ORGEOOrganic Geochemistry
- ORLIOrigins of Life
- ORNAVOrtung Und Navigation
- OROMOpuscula Romana
- ORROEOccasional Reports of the Royal Observatory, Edinburgh
- OSOptics and Spectroscopy
- OSAJOptical Society of America Journal
- OSAJOptical Society of America Jourfal
- OSAJIOptical Society of America Journal - Optics and Image Science
- OSAPHOxford Studies In Ancient Philosophy
- OSCAROsteoatthritis and Cartilage
- OSIDOpen Systems & Information Dynamics
- OSIDOpen Systems and Information Dynamics
- OSJAJOceanographical Society of Japan Journal
- OSUTROsaka University Technology Reports
- OSUTROsaka Universityrsity Technology Reports
- OTAAOperator Theory: Advances and Applications
- OTOBIOtbor I Obrabotka Informatsii
- OTPIOtbor I Peredacha Informatsii
- OVSObservation of Variable Stars
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