| 3411 | SIN1.1 | Singer, Samuel | Apolonius von Tyrus. Untersuchungen uber das Fortleben des antiken Romans in spartern zeiten | da |
| 3412 | SIN2.1 | Sinaiko, Herman L. | Love, Knowledge, and Discourse in Plato: Dialogue and Dialectic in Phaedrus, Republic, Parmenides | da |
| 3413 | SIR1.1 | Sirat, Colette | La philosophie juive médiévale en pays de chrétienté | da |
| 3414 | SIR1.2 | Sirat, Colette | La philosophie juive médiévale en terre d'Islam | da |
| 3415 | SIR1.3 | Sirat, Colette | A history of Jewish philosophy in the middle ages | da |
| 3416 | SIS1.1 | Siserman, Dan | Teologia istoriei la Gioacchino din Fiore | nu |
| 3417 | SIS1.2 | Siserman, Dan; Tat, Alin (eds.) | Spicilegium Philosophicum – Studii de Filosofie | da |
| 3418 | SLE1.1 | Sleeman, J. H.; Pollet, Gilbert | Lexicon Plotinianum | da |
| 3419 | SLO1.1 | Slotemaker, J., Witt, J. | Robert Holcot | nu |
| 3420 | SMA1.1 | Šmahel, František | Charles University in the Middle Ages. Selected studies | da |
| 3421 | SMA1.2 | Šmahel, František (ed.); Pavlicek, Ota (colab.) | A Companion to Jan Hus | da |
| 3422 | SME1.1 | Smet, Joachim (ed.) | Manuscripts in the Vatican Library relating to the Carmelite Order | da |
| 3423 | SMI1.1 | Smith, Lesley | The Glossa Ordinaria. The Making of a Medieval Bible Commentary | da |
| 3424 | SMI2.1.1 | Martinus Smiglecius | Commentaria in Organum Aristotelis, vol. I | da |
| 3425 | SMI2.1.2 | Martinus Smiglecius | Commentaria in Organum Aristotelis, vol. II | da |
| 3426 | SMI3.1 | Smith, Randall B. | Întruchipări ale înțelepciunii creștine | da |
| 3427 | SOE1.1 | Soetermeer, Frank | Utrumque jus in peciis | da |
| 3428 | SOL1.1 | Solère, Jean-Luc; Vasiliu, Anca; Galonnier, Alain (ed.) | Alain de Lille, le Docteur Universel. Philosophie, theologie, et litterature au XIIe siecle | da |
| 3429 | SOL1.2 | Solère, Jean-Luc; Kaluza, Z. (ed.) | La servante et la consolatrice | da |
| 3430 | SOL2.1 | Solmsen, F. (ed.) | Inscriptiones graecae ad inlustrandas dialectos selectae | da |
| 3431 | SOP1.1 | Sophocle | Tragoediae | da |
| 3432 | SOR1.1 | Sorabji, Richard | Philoponus and the Rejection of Aristotelian Science | da |
| 3433 | SOR2.1 | Sorel, Reynal | Orfeu şi orfismul | da |
| 3434 | SOU1.1 | de Souza, José Antonio de C. R. (org.) | As Relaçoes de Poder: do Cisma do Ocidente a Nicolau de Cusa | da |
| 3435 | SOU1.2 | de Souza, José Antonio de C. R. (org.) | Edade média: Tempo do Mundo, tempo dos Homens, tempo de Deus | da |
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