| 1876 | KNO2.1 | Knowles, David | The Evolution of Medieval Thought | da |
| 1877 | KOG1.1 | Kogel, Julius | Petrus Lombardus in seiner Stellung zur Philosophie des Mittelalters | da |
| 1878 | KOL1.1 | Koller, Alexander (herausg.) | Kurie und Politik. Stand und Perspektiven der Nuntiaturberichtsforschung | da |
| 1879 | KON1.1 | König-Pralong, Catherine | Le bon usage des savoirs | da |
| 1880 | KON1.2 | Konig-Pralong, Katherine | Avenement de l'aristotelisme en terre chretienne | da |
| 1881 | KON1.3 | König-Pralong, Catherine | Etre, Essence & Contingence. Henri de Gand, Gilles de Rome, Godefroid de Fontaines | da |
| 1882 | KON1.4 | König-Pralong, Catherine | Médiévisme philosophique et raison moderne. De Pierre Bayle à Ernest Renan | da |
| 1883 | KOO1.1 | Kooper, Erik; Levelt, Sjoerd | The Medieval Chronicle IX | da |
| 1884 | KOT1.1 | Kotkas, Toomas | Royal Police Ordinances In Early Modern Sweden The Emergence Of Voluntaristic Understanding Of Law | da |
| 1885 | KOW1.1 | Kowalczyk, Maria | Krakowskie mowy uniwersyteckie z pierwszej polowy XV wieku | da |
| 1886 | KRA1.1 | Kraut, Richard | The Cambridge companion to Plato | da |
| 1887 | KRA2.1 | Kraemer, Joel L. | Humanism in the renaissance of Islam: the cultural revival during the Buyid age | da |
| 1888 | KRE1.1 | Kremer, Klaus | Die Neoplatonische Seinsphilosophie und ihre Wirkung auf Thomas von Aquin | da |
| 1889 | KRE2.1 | Kretzmann, N.; Kenny, A.; Pinborg, A. | The Cambridge Companion to Later Medieval Philosophy | da |
| 1890 | KRI1.1 | Kristeller, Paul Oskar | Latin Manuscript Books before 1600 | da |
| 1891 | KRI1.2.1 | Kristeller, Paul Oskar (ed.) | Catalogus translationum et commentariorum: Medieval and Renaissance Latin Translations and Commentaries | da |
| 1892 | KRI1.3 | Kristeller, Paul Oskar | Renaissance thought and its sources | nu |
| 1893 | KRU1.1 | Krüger, Max | Griechisches Ubungsbuch | da |
| 1894 | KRU2.1 | Kruger, Gerhart | Ragione e Passione, L'essenza del pensiero platonico | da |
| 1895 | KUH1.1 | Kühn, Wilfried | Quel savoir après le scepticisme? | da |
| 1896 | KÜN1.1 | Küng, Hans | Dans Christentum.Wesen und Geschichte | da |
| 1897 | KÜN1.2 | Küng, Hans | Erkämpfte Freiheit | da |
| 1898 | KÜN1.3 | Küng, Hans | Die Kirche | da |
| 1899 | KUN2.1 | Kunitzsch, Paul | The Arabs and the stars: texts and traditions on the fixed stars, and their influence in medieval Europe | da |
| 1900 | KUR1.1.1 | Kurfess, A. (ed.) | Appendix Sallustiana I | da |
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