| 3431 | SIN2.1 | Sinaiko, Herman L. | Love, Knowledge, and Discourse in Plato: Dialogue and Dialectic in Phaedrus, Republic, Parmenides | da |
| 3432 | SIR1.1 | Sirat, Colette | La philosophie juive médiévale en pays de chrétienté | da |
| 3433 | SIR1.2 | Sirat, Colette | La philosophie juive médiévale en terre d'Islam | da |
| 3434 | SIR1.3 | Sirat, Colette | A history of Jewish philosophy in the middle ages | da |
| 3435 | SIS1.1 | Siserman, Dan | Teologia istoriei la Gioacchino din Fiore | nu |
| 3436 | SIS1.2 | Siserman, Dan; Tat, Alin (eds.) | Spicilegium Philosophicum – Studii de Filosofie | da |
| 3437 | SLE1.1 | Sleeman, J. H.; Pollet, Gilbert | Lexicon Plotinianum | da |
| 3438 | SLO1.1 | Slotemaker, J., Witt, J. | Robert Holcot | nu |
| 3439 | SMA1.1 | Šmahel, František | Charles University in the Middle Ages. Selected studies | da |
| 3440 | SMA1.2 | Šmahel, František (ed.); Pavlicek, Ota (colab.) | A Companion to Jan Hus | da |
