| 1821 | JEA1.1 | Jeauneau, Edouard | Etudes erigeniennes | da |
| 1822 | JEA1.2 | Jeauneau, Edouard | Receptarea Părinților greci ai Bisericii în Occident. Contribuția lui Ioan Scotus Eriugena | da |
| 1823 | JIM1.1 | Jiménez del Castillo, Juan Carlos | La Austriaca siue Naumachia de Francisco de Pedrosa | da |
| 1824 | JOL1.1 | Jolivet, Jean | Translationes studiorum. Studii de filosofie medievala araba si latina | da |
| 1825 | JOL1.2 | Jolivet, Jean | Arts du langage et théologie chez Abélard | da |
| 1826 | JOL1.3 | Jolivet, Jean | Résumés des conférences et travaux | da |
| 1827 | JOL1.4 | Jolivet, Jean | Abelard: artele limbajului si teologia | nu |
| 1828 | JOL1.5 | Jolivet, Jean | Perspectives médiévales et arabes | da |
| 1829 | JOL1.6 | Jolivet, Jean | Godescalc d'Orbais et la Trinite a l'epoque carolingienne | da |
| 1830 | JOL1.7 | Jolivet, Jean (ed.) | Multiple Averroes | da |
| 1831 | JOL1.8 | Jolivet, Jean | Abelard ou la philosophie dans le langage | da |
| 1832 | JON1.1 | Jones, W.T. | The medieval mind | da |
| 1833 | JOR1.1 | Jordan von Quedlinburg | Postillae et Sermones | da |
| 1834 | JUL1.1 | Julia, Didier | Dictionnaire de la philosophie | da |
| 1835 | JUN1.1 | Jung-Palczewska, Elzbieta | Prima verba. Krakowskie mowy uniwersyteckie | da |
| 1836 | KAG1.1 | Kagan, Donald (ed.) | Studies in the Greek Historians | da |
| 1837 | KAL1.1 | Kaluza, Zenon | Lektury Filozoficzne Wincentego Kadlubka. Zbior Studiow | da |
| 1838 | KAL1.2 | Kaluza, Zenon | Etudes doctrinales sur le XIVe siecle. Theologie, logique, philosophie | da |
| 1839 | KAL1.3 | Kaluza, Zenon | Les querelles doctrinales a Paris. Nominalistes et realistes aux confins du XIVe et du XVe siecle | da |
| 1840 | KAL1.4 | Kaluza, Zenon | Nicolas d'Autrecourt, ami de la verite | nu |
| 1841 | KAL2.1 | Kalhous, David | Anatomy of a duchy. The political and ecclesiastical structures of early Přemyslid Bohemia | da |
| 1842 | KAM1.1 | Ibn-Kammūna, Saʿd Ibn-Manṣūr | Examen de la critique des trois religions monothéistes | da |
| 1843 | KAN1.1 | Kant, Immanuel | Prolegomene la orice metafizica viitoare care se va putea infatisa drept stiinta | da |
| 1844 | KAN1.2 | Kant, Immanuel | Critica raţiunii practice | da |
| 1845 | KAN2.1 | Kandler, K.-H.; Mojsisch, B.; Stammkotter, F.-B. | Dietrich von Freiberg. Neue Perspektiven seiner Philosophie, Theologie und Naturwissenschaft | da |
| 1846 | KAP1.1 | Kaposi, Krisztina (ed.) | Enyedi 460. Tanulmanykotet Enyedi Gyorgy szuletesenek 460 evfordulojara rendezett kamarakonferencia eloadasaibol | da |
| 1847 | KAS1.1 | Kassel, Rudolf | Der text der aristotelischen phetorik | da |
| 1848 | KEC1.1 | Bartholomaeus Keckermann | Praecognita philosophica | da |
| 1849 | KEN1.1 | Kenny, Anthony | Aquinas on mind | da |
| 1850 | KEN2.1 | Kennedy, Edward S. | Astronomy and astrology in the Medieval Islamic world | da |
| 1851 | KES1.1 | Kesper-Biermann, Sylvia | Kriminalität in Mittelalter und Früher Neuzeit : soziale, rechtliche, philosophische und literarische Aspekte | da |
| 1852 | KEU1.1 | Keuls, Eva C. | Plato And Greek Painting | da |
| 1853 | KIE1.1.3 | Kieckers, E. | Historische griechische Grammatik. Syntax III | da |
| 1854 | KIE1.1.4 | Kieckers, E. | Historische griechische Grammatik. Syntax IV | da |
| 1855 | KIL1.1.2 | Robert Kilwardby | Quaestiones in librum secundum Sententiarum | da |
| 1856 | KIL1.1.5 | Robert Kilwardby | Quaestiones in quattuor libros sententiarum-appendix | da |
| 1857 | KIL1.2 | Kilwardby, Robert; Judy, Albert G. (ed.) | De ortu scientiarum | da |
| 1858 | KIL1.3 | Kilwardby, Robert; Lewry, P. Osmund (ed.) | On Time and Imagination. De Tempore. De Spiritu Fantastico | da |
| 1859 | KIR1.1 | Kirk, G.S.; Raven, J.E. | The Presocratic Philosophers | da |
| 1860 | KIR2.1.3 | Gert Haendler | Kirchengeschichte in Einzeldarstellungen, Band I/03 | da |
| 1861 | KIR2.1.5 | Gert Haendler | Kirchengeschichte in Einzeldarstellungen, Band I/05 | da |
| 1862 | KIR2.1.6 | Friedhelm Winkelmann | Kirchengeschichte in Einzeldarstellungen, Band I/06 | da |
| 1863 | KIR3.1 | Kirk, G. S. | The Homeric Poems As History | da |
| 1864 | KIR4.1 | Kirby, Gerald J. | Law in the Writings of John of Salisbury and St. Thomas Aquinas | da |
| 1865 | 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 |
| 1866 | KIT1.1#1 | Kitanov, Severin Valentinov | Beatific Enjoyment in Medieval Scholastic Debates. The Complex Legacy of Saint Augustine and Peter Lombard | da |
| 1867 | KIT1.1#2 | Kitanov, Severin Valentinov | Beatific Enjoyment in Medieval Scholastic Debates. The Complex Legacy of Saint Augustine and Peter Lombard | nu |
| 1868 | KLE1 | Klein, Jacob | A Commentary on Plato's Meno | nu |
| 1869 | KLI1.1 | Klibansky, Raymond | The continuity of the Platonic Tradition during the Middle Ages | da |
| 1870 | KLI2.1 | Klingner, F. | Boethii De consolatione Philosophiae | da |
| 1871 | KNO1.1 | Knoll, Paul W. | "A pearl of powerful learning": the university of Cracow in the fifteenth century | nu |
| 1872 | KNO2.1 | Knowles, David | The Evolution of Medieval Thought | da |
| 1873 | KOG1.1 | Kogel, Julius | Petrus Lombardus in seiner Stellung zur Philosophie des Mittelalters | da |
| 1874 | KOL1.1 | Koller, Alexander (herausg.) | Kurie und Politik. Stand und Perspektiven der Nuntiaturberichtsforschung | da |
| 1875 | KON1.1 | König-Pralong, Catherine | Le bon usage des savoirs | da |
| 1876 | KON1.2 | Konig-Pralong, Katherine | Avenement de l'aristotelisme en terre chretienne | da |
| 1877 | KON1.3 | König-Pralong, Catherine | Etre, Essence & Contingence. Henri de Gand, Gilles de Rome, Godefroid de Fontaines | da |
| 1878 | KON1.4 | König-Pralong, Catherine | Médiévisme philosophique et raison moderne. De Pierre Bayle à Ernest Renan | da |
| 1879 | KOO1.1 | Kooper, Erik; Levelt, Sjoerd | The Medieval Chronicle IX | da |
| 1880 | KOT1.1 | Kotkas, Toomas | Royal Police Ordinances In Early Modern Sweden The Emergence Of Voluntaristic Understanding Of Law | da |
| 1881 | KOW1.1 | Kowalczyk, Maria | Krakowskie mowy uniwersyteckie z pierwszej polowy XV wieku | da |
| 1882 | KRA1.1 | Kraut, Richard | The Cambridge companion to Plato | da |
| 1883 | KRA2.1 | Kraemer, Joel L. | Humanism in the renaissance of Islam: the cultural revival during the Buyid age | da |
| 1884 | KRE1.1 | Kremer, Klaus | Die Neoplatonische Seinsphilosophie und ihre Wirkung auf Thomas von Aquin | da |
| 1885 | KRE2.1 | Kretzmann, N.; Kenny, A.; Pinborg, A. | The Cambridge Companion to Later Medieval Philosophy | da |
| 1886 | KRI1.1 | Kristeller, Paul Oskar | Latin Manuscript Books before 1600 | da |
| 1887 | KRI1.2.1 | Kristeller, Paul Oskar (ed.) | Catalogus translationum et commentariorum: Medieval and Renaissance Latin Translations and Commentaries | da |
| 1888 | KRI1.3 | Kristeller, Paul Oskar | Renaissance thought and its sources | nu |
| 1889 | KRU1.1 | Krüger, Max | Griechisches Ubungsbuch | da |
| 1890 | KRU2.1 | Kruger, Gerhart | Ragione e Passione, L'essenza del pensiero platonico | da |
| 1891 | KUH1.1 | Kühn, Wilfried | Quel savoir après le scepticisme? | da |
| 1892 | KÜN1.1 | Küng, Hans | Dans Christentum.Wesen und Geschichte | da |
| 1893 | KÜN1.2 | Küng, Hans | Erkämpfte Freiheit | da |
| 1894 | KÜN1.3 | Küng, Hans | Die Kirche | da |
| 1895 | KUN2.1 | Kunitzsch, Paul | The Arabs and the stars: texts and traditions on the fixed stars, and their influence in medieval Europe | da |
| 1896 | KUR1.1.1 | Kurfess, A. (ed.) | Appendix Sallustiana I | da |
| 1897 | KUR1.1.2 | Kurfess, A. (ed.) | Appendix Sallustiana II | da |
| 1898 | KUR2.1 | Kurdziałek, Marian | Prolegomena zu Davidis de Dinanto Quaternulorum fragmenta | da |
| 1899 | LAB1.1 | Labarbe, Jules | L`Homere de Platon | da |
| 1900 | LAC1.1 | Lacrosse, Joachim | La philosophie de Plotin. Intellect et discursivite | nu |
| 1901 | LAC2.1 | Lactantius | Von den Todesarten der Verfolger et al. | da |
| 1902 | LAF1.1 | Lafleur, Claude | Quatre introductions à la philosophie au XIIIe siècle | da |
| 1903 | LAG1.1.1 | Lagerlund, Henrik (ed.) | Encyclopedia of Medieval Philosophy. Philosophy Between 500 and 1500. Vol. 1 A-L | da |
| 1904 | LAG1.1.2 | Lagerlund, Henrik (ed.) | Encyclopedia of Medieval Philosophy. Philosophy Between 500 and 1500. Vol. 2 M-Z | da |
| 1905 | LAK1.1 | Laks, Andre | Diogene d'Apollonie | da |
| 1906 | LAN1.1 | Langermann, Y. Tzvi (ed.) | Avicenna and his legacy | da |
| 1907 | LAN2.1 | Landgraf, Artur Michael | Introduction a l'histoire de la littterature theologique de la scolastique naissante | da |
| 1908 | LAN3.1#1 | Lang, Helen S. | Aristotle's Physics and its medieval varieties | da |
| 1909 | LAN3.1#2 | Lang, Helen S. | Aristotle's Physics and its medieval varieties | da |
| 1910 | LAN4.1 | Landersdorfer, P. S. (tr.) | Ausgewälte Schriften der Syrischer Dichter | da |
| 1911 | LAN5.1 | Lancel, Serge | Saint Augustin | da |
| 1912 | LAS1.1 | Lassere, F. | Etude sur les extraits medievaux de Strabon suivie d'un traite inedit de Michel Psellus | da |
| 1913 | LAS2.1.1 | Laszlo, Alexandru | Lectura lui Dante. Infernul | da |
| 1914 | LAS2.1.2 | Laszlo, Alexandru | Lectura lui Dante. Purgatoriul | da |
| 1915 | LAS2.1.3 | Laszlo, Alexandru | Lectura lui Dante. Paradisul | da |
| 1916 | LAU1.1 | Laurent, Jerome | Les fondements de la nature dans la pensee de Plotin. Procession et participarion | da |
| 1917 | LAU2.1 | Laurand, L. | Etudes sur le style des Discours de Ciceron | da |
| 1918 | LAV1.1 | Rus, Anton; Castaldini, Alberto (ed.) | Sapientia et scientia theologica: in honorem Renzo Lavatori per l'80 genetliaco | da |
| 1919 | LEA1.1 | Leal, Jerónimo | Actas Latinas de Mártires Africanos | da |
| 1920 | LEB1.1 | Le Boulluec, Alain; Gabriela Soares Santoprete, Luciana; Timotin, Andrei (eds.) | Exégèse, révélation et formation des dogmes dans l’Antiquité tardive | da |
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