| 1891 | KAS1.1 | Kassel, Rudolf | Der text der aristotelischen phetorik | da |
| 1892 | KEC1.1 | Bartholomaeus Keckermann | Praecognita philosophica | da |
| 1893 | KEN1.1 | Kenny, Anthony | Aquinas on mind | da |
| 1894 | KEN2.1 | Kennedy, Edward S. | Astronomy and astrology in the Medieval Islamic world | da |
| 1895 | KES1.1 | Kesper-Biermann, Sylvia | Kriminalität in Mittelalter und Früher Neuzeit : soziale, rechtliche, philosophische und literarische Aspekte | da |
| 1896 | KEU1.1 | Keuls, Eva C. | Plato And Greek Painting | da |
| 1897 | KIE1.1.3 | Kieckers, E. | Historische griechische Grammatik. Syntax III | da |
| 1898 | KIE1.1.4 | Kieckers, E. | Historische griechische Grammatik. Syntax IV | da |
| 1899 | KIL1.1.2 | Robert Kilwardby | Quaestiones in librum secundum Sententiarum | da |
| 1900 | KIL1.1.5 | Robert Kilwardby | Quaestiones in quattuor libros sententiarum-appendix | da |
| 1901 | KIL1.2 | Kilwardby, Robert; Judy, Albert G. (ed.) | De ortu scientiarum | da |
| 1902 | KIL1.3 | Kilwardby, Robert; Lewry, P. Osmund (ed.) | On Time and Imagination. De Tempore. De Spiritu Fantastico | da |
| 1903 | KIR1.1 | Kirk, G.S.; Raven, J.E. | The Presocratic Philosophers | da |
| 1904 | KIR2.1.3 | Gert Haendler | Kirchengeschichte in Einzeldarstellungen, Band I/03 | da |
| 1905 | KIR2.1.5 | Gert Haendler | Kirchengeschichte in Einzeldarstellungen, Band I/05 | da |
| 1906 | KIR2.1.6 | Friedhelm Winkelmann | Kirchengeschichte in Einzeldarstellungen, Band I/06 | da |
| 1907 | KIR3.1 | Kirk, G. S. | The Homeric Poems As History | da |
| 1908 | KIR4.1 | Kirby, Gerald J. | Law in the Writings of John of Salisbury and St. Thomas Aquinas | da |
| 1909 | KIS1.1 | Kisseleva, Ludmila; Stirnemann, Patricia (eds.) | Catalogue des manuscrits medievaux en ecriture latine de la Bibliotheque de l'Academie des Sciences de Russie de Saint-Petersbourg | da |
| 1910 | KIT1.1#1 | Kitanov, Severin Valentinov | Beatific Enjoyment in Medieval Scholastic Debates. The Complex Legacy of Saint Augustine and Peter Lombard | da |
| 1911 | KIT1.1#2 | Kitanov, Severin Valentinov | Beatific Enjoyment in Medieval Scholastic Debates. The Complex Legacy of Saint Augustine and Peter Lombard | da |
| 1912 | KLE1 | Klein, Jacob | A Commentary on Plato's Meno | nu |
| 1913 | KLI1.1 | Klibansky, Raymond | The continuity of the Platonic Tradition during the Middle Ages | da |
| 1914 | KLI2.1 | Klingner, F. | Boethii De consolatione Philosophiae | da |
| 1915 | KNO1.1 | Knoll, Paul W. | "A pearl of powerful learning": the university of Cracow in the fifteenth century | nu |
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