Authors
| Oberem, Udo (2) | Oberem, Udo (1) | Odell, G. H. (1) |
| Ogburn, Dennis E. (5) | Ojeda, Bernardino (1) | ONERN (1) |
| Onuma, Naoki (1) | Oppenheimer, Clive (1) | Origer, T. M. (1) |
| Orser, C. (1) | Ortiz de Zúñiga, Iñigo (1) | Orton, Clive (1) |
| Osborne, Carolyn M. (1) | Ossa, Paul P. (1) | Owen, Bruce (1) |
| Owen, Bruce D. (1) | of Oxford), St. Antony's College(University (1) | |
