There are 1,525 titles that begin with the letter O

  1. Operations Management Education Review (ISSN: 1649-7082,EISSN: 2044-4567)
  2. Operations Management Research (ISSN: 1936-9735,EISSN: 1936-9743)
  3. Operations Research (ISSN: 0030-364X,EISSN: 1526-5463)
  4. Operations research and decisions (ISSN: 2081-8858)
  5. Operations Research for Health Care (ISSN: 2211-6923,EISSN: 2211-6931)
  6. Operations Research Forum (EISSN: 2662-2556)
  7. Operations research letters (ISSN: 0167-6377,EISSN: 1872-7468)
  8. Operations Research Perspectives (ISSN: 2214-7160)
  9. Operative dentistry (ISSN: 0361-7734,EISSN: 1559-2863)
  10. Operative Neurosurgery (ISSN: 2332-4252,EISSN: 2332-4260)
  11. Operative Orthopädie und Traumatologie (ISSN: 0934-6694,EISSN: 1439-0981)
  12. Operative techniques in cardiac & thoracic surgery (ISSN: 1085-5637,EISSN: 1876-4770)
  13. Operative techniques in general surgery (ISSN: 1524-153X,EISSN: 1558-383X)
  14. Operative techniques in neurosurgery (ISSN: 1092-440X,EISSN: 1557-9409)
  15. Operative techniques in orthopaedics (ISSN: 1048-6666,EISSN: 1558-3848)
  16. Operative techniques in otolaryngology--head and neck surgery (ISSN: 1043-1810,EISSN: 1557-9395)
  17. Operative techniques in plastic and reconstructive surgery (ISSN: 1071-0949,EISSN: 1558-0741)
  18. Operative techniques in sports medicine (ISSN: 1060-1872,EISSN: 1557-9794)
  19. Operative techniques in thoracic and cardiovascular surgery (ISSN: 1522-2942,EISSN: 1532-8627)
  20. Opflow (ISSN: 0149-8029,EISSN: 1551-8701)
  21. Ophthalmic and Physiological Optics (ISSN: 0275-5408,EISSN: 1475-1313)
  22. Ophthalmic epidemiology (ISSN: 0928-6586,EISSN: 1744-5086)
  23. Ophthalmic genetics (ISSN: 1381-6810,EISSN: 1744-5094)
  24. Ophthalmic paediatrics and genetics (ISSN: 0167-6784)
  25. Ophthalmic plastic and reconstructive surgery (ISSN: 0740-9303,EISSN: 1537-2677)
  26. Der Ophthalmologe (ISSN: 0941-293X,EISSN: 1433-0423)
  27. Ophthalmology (ISSN: 0161-6420,EISSN: 1549-4713)
  28. Ophthalmology and Eye Diseases (EISSN: 1179-1721)
  29. Ophthalmology and Therapy (ISSN: 2193-8245,EISSN: 2193-6528)
  30. Ophthalmology Journal (ISSN: 2450-7873,EISSN: 2450-9930)
  31. Ophthalmology Science (ISSN: 2666-9145)
  32. Ophthalmology Times (ISSN: 0193-032X,EISSN: 2150-7333)
  33. Ophthalmology Update (ISSN: 1993-2863)
  34. Opinion Piece in Macedonian Press
  35. L'opinion publique (ISSN: 0711-7477)
  36. L'opinion publique : journal illustré
  37. Opinião Pública (ISSN: 0104-6276,EISSN: 1807-0191)
  38. La Opinión (ISSN: 0276-590X)
  39. Opinión jurídica (ISSN: 1692-2530,EISSN: 2248-4078)
  40. Oplink Communications, Inc. MarketLine Company Profile
  41. Opolis (ISSN: 1552-2148)
  42. Opolskie Studia Administracyjno-Prawne (ISSN: 1731-8297,EISSN: 2658-1922)
  43. Oppdragsrapport. A - Norges vassdrags- og energidirektorat (ISSN: 1503-0318)
  44. Oppenheimer Holdings Inc. MarketLine Company Profile
  45. Opportunistic pathogens (ISSN: 1386-2618,EISSN: 1878-3694)
  46. Opportunities for Research in Renaissance Drama (ISSN: 2378-4016,EISSN: 2380-1166)
  47. Opportunities for Research in Renaissance Drama (Exclusive of Shakespeare) (ISSN: 2378-3990,EISSN: 2380-1182)
  48. The Oppressed
  49. OPSEARCH (ISSN: 0030-3887,EISSN: 0975-0320)
  50. OPSI (ISSN: 1693-2102,EISSN: 2686-2352)
  51. Opsis (ISSN: 1519-3276,EISSN: 2177-5648)
  52. Optica (ISSN: 2334-2536)
  53. OPTICA APPLICATA (ISSN: 0078-5466,EISSN: 1899-7015)
  54. Optical and Quantum Electronics (ISSN: 0306-8919,EISSN: 1572-817X)
  55. Optical Cable Corporation MarketLine Company Profile
  56. Optical Data Processing and Storage (EISSN: 2084-8862)
  57. Optical Engineering (ISSN: 0091-3286,EISSN: 1560-2303)
  58. Optical Fiber Communication (OFC)Conference (ISSN: 1094-5695)
  59. Optical fiber technology (ISSN: 1068-5200,EISSN: 1095-9912)
  60. Optical information systems (ISSN: 0886-5809)
  61. Optical Interconnects Conference, IEEE (ISSN: 2376-8665)
  62. Optical materials (Amsterdam. Print) (ISSN: 0925-3467,EISSN: 1873-1252)
  63. Optical materials express (ISSN: 2159-3930)
  64. Optical Materials: X (EISSN: 2590-1478)
  65. Optical Memory & Neural Networks (ISSN: 1060-992X,EISSN: 1934-7898)
  66. Optical Memory News (ISSN: 0741-5869)
  67. Optical MEMS, IEEE/LEOS International Conference on (ISSN: 2160-5033,EISSN: 2160-5041)
  68. Optical Nanoscopy (ISSN: 2192-2853)
  69. Optical Review (ISSN: 1340-6000,EISSN: 1349-9432)
  70. Optical switching and networking (ISSN: 1573-4277,EISSN: 1872-9770)
  71. Optician (ISSN: 0030-3968)
  72. Opticon1826 (ISSN: 2049-8128)
  73. Optics (EISSN: 2673-3269)
  74. Optics and Laser Technology (ISSN: 0030-3992,EISSN: 1879-2545)
  75. Optics and lasers in engineering (ISSN: 0143-8166,EISSN: 1873-0302)
  76. Optics and Spectroscopy (ISSN: 0030-400X,EISSN: 1562-6911)
  77. Optics communications (ISSN: 0030-4018,EISSN: 1873-0310)
  78. Optics express (ISSN: 1094-4087)
  79. Optics letters (ISSN: 0146-9592,EISSN: 1539-4794)
  80. Optics technology (ISSN: 0374-3926,EISSN: 1878-7371)
  81. Optik (Stuttgart) (ISSN: 0030-4026,EISSN: 1618-1336)
  82. Optimal Control (ISSN: 0143-2087,EISSN: 1099-1514)
  83. Optimal Payments Plc MarketLine Company Profile
  84. Optimization and Engineering (ISSN: 1389-4420,EISSN: 1573-2924)
  85. Optimization Letters (ISSN: 1862-4472,EISSN: 1862-4480)
  86. Optimization methods & software (ISSN: 1055-6788,EISSN: 1029-4937)
  87. Optimization of Electrical and Electronic Equipment, OPTIM, International Conference on (ISSN: 1842-0133)
  88. Optimization: Journal of Research in Management (ISSN: 0974-0988)
  89. Optimize (ISSN: 1537-2308)
  90. Optimum (ISSN: 0475-1906)
  91. Optimum : Ekonomi ve Yönetim Bilimleri Dergisi (EISSN: 2148-4228)
  92. Optimum online (ISSN: 1910-7706)
  93. Optimum. Studia Ekonomiczne (ISSN: 1506-7637)
  94. Option NV MarketLine Company Profile
  95. Option/bio (ISSN: 0992-5945)
  96. Optionable, Inc. MarketLine Company Profile
  97. Opto Tech Corporation MarketLine Company Profile
  98. Opto-Electronic Advances (ISSN: 2096-4579)
  99. Opto-electronics (ISSN: 0030-4077)
  100. Opto-Electronics Review (ISSN: 1230-3402,EISSN: 1896-3757)