| 531 | x-spa1.1 | Spalding, K.T. | On the Sphere and Limit of the Aristotelian Logic | da |
| 532 | x-sta1.1 | Stannard, Jerry | Parmenidian Logic | da |
| 533 | x-sta2.1 | Stanton, G.R. | Sophists and Philosophers: Problems of Classification | da |
| 534 | x-ste1.2 | Steel Carlos | Medieval Philosophy: an Impossible Project? Thomas Aquinas and the "Averroistic" Ideal of Happiness | da |
| 535 | x-ste1.1 | Steel Carlos | Siger of Brabant versus Thomas Aquinas on the Possibility of Knowing the Separate Substances | da |
| 536 | x-ste1.3 | Steel, Carlos ; Guy Guldentops | An unknown tratise of Averoes against the Avicennians on the first cause | da |
| 537 | X-ste2.1 | Steenberghen, Fernand van | Prolegomenes a la <<quarta via>> | da |
| 538 | x-sto2.1 | Stone, Martin W F. | Moral Psychology afer 1277: Did the Parisian Condemnation Make a Difference to Philosophical Discussions of Human Agency? | da |
| 539 | X-str1.1 | Strauss Leo | How to Study Medieval Philosophy | da |
| 540 | X-str2.1 | Street, Tony | Avicenna and Tusi on the Contradiciton and Conversion of the Absolute | da |
