1. online service

    http://lod.gesis.org/thesoz/concept_10064826

  2. online survey

    http://lod.gesis.org/thesoz/concept_10037911

  3. only child

    http://lod.gesis.org/thesoz/concept_10041798

  4. ontogenesis

    http://lod.gesis.org/thesoz/concept_10042247

  5. ontology

    http://lod.gesis.org/thesoz/concept_10053747

  6. OPEC

    http://lod.gesis.org/thesoz/concept_10047844

  7. open access

    http://lod.gesis.org/thesoz/concept_10081741

  8. open channel

    http://lod.gesis.org/thesoz/concept_10053705

  9. open correctional system

    http://lod.gesis.org/thesoz/concept_10044162

  10. open curriculum

    http://lod.gesis.org/thesoz/concept_10040446

  11. open economy

    http://lod.gesis.org/thesoz/concept_10051202

  12. open learning

    http://lod.gesis.org/thesoz/concept_10051051

  13. open method of coordination

    http://lod.gesis.org/thesoz/concept_10082550

  14. open society

    http://lod.gesis.org/thesoz/concept_10045284

  15. open system

    http://lod.gesis.org/thesoz/concept_10053713

  16. open ward (of an insane asylum)

    http://lod.gesis.org/thesoz/concept_10035740

  17. open youth work

    http://lod.gesis.org/thesoz/concept_10070346

  18. open-market policy

    http://lod.gesis.org/thesoz/concept_10044834

  19. opening up of markets

    http://lod.gesis.org/thesoz/concept_10063726

  20. opera

    http://lod.gesis.org/thesoz/concept_10052764

  21. operating costs

    http://lod.gesis.org/thesoz/concept_10038951

  22. operating model

    http://lod.gesis.org/thesoz/concept_10044541

  23. operating result

    http://lod.gesis.org/thesoz/concept_10038922

  24. operationalization

    http://lod.gesis.org/thesoz/concept_10053758

  25. operations research

    http://lod.gesis.org/thesoz/concept_10053761

  26. operations scheduling

    http://lod.gesis.org/thesoz/concept_10036660

  27. opinion

    http://lod.gesis.org/thesoz/concept_10041742

  28. opinion formation

    http://lod.gesis.org/thesoz/concept_10041758

  29. opinion leader

    http://lod.gesis.org/thesoz/concept_10052060

  30. opinion research

    http://lod.gesis.org/thesoz/concept_10052054

  31. Oppenheimer, Franz

    http://lod.gesis.org/thesoz/concept_10053770

  32. opportunism

    http://lod.gesis.org/thesoz/concept_10053773

  33. opportunity costs

    http://lod.gesis.org/thesoz/concept_10079986

  34. opposition

    http://lod.gesis.org/thesoz/concept_10037410

  35. oppositional public opinion

    http://lod.gesis.org/thesoz/concept_10053592

  36. oppression

    http://lod.gesis.org/thesoz/concept_10041152

  37. optical industry

    http://lod.gesis.org/thesoz/concept_10047189

  38. optimism

    http://lod.gesis.org/thesoz/concept_10079053

  39. optimization

    http://lod.gesis.org/thesoz/concept_10053781

  40. optimization model

    http://lod.gesis.org/thesoz/concept_10052574