| 1801 | ISA1.1 | Isaac, J. | Le Peri Hermeneias En Occident. De Boece a Saint Thomas | da |
| 1802 | ISI1.1 | Isidor de Sevilla | Etimologii XI-XII | da |
| 1803 | ISI1.2 | Isidor de Sevilla | Expositio in Vetus Testamentum Genesis / Isidorus Episcopus Hispalensis | da |
| 1804 | ISO1.1.1 | Isocrates | Orationes Vol.1 (ed. Blass) | da |
| 1805 | ISO1.1.2 | Isocrates | Orationes Vol.2 (ed. Blass) | da |
| 1806 | ISO1.2.1 | Isocrate | Oeuvres Completes I | da |
| 1807 | ISO1.2.2 | Isocrate | Oeuvres Completes II | da |
| 1808 | ISO1.2.3 | Isocrate | Oeuvres Completes III | da |
| 1809 | ITI195 | | Itinerarium | da |
| 1810 | IUS1.1.1 | Iustinianus | Novellae Vol.1 (ed. Zachariae) | da |
| 1811 | IUS1.1.2 | Iustinianus | Novellae Vol.2 (ed. Zachariae) | da |
| 1812 | IUS2.1 | Iustinus | Dialog mit dem Juden Tryphon | da |
| 1813 | IUV1.1 | Iuvenal et Persius | Oeuvres completes - De Turnus et De Suplicia | da |
| 1814 | IUV1.2 | Iuvenal et Persius | Oeuvres Completes - De Turnus et De Suplicia | da |
| 1815 | JAB1.1 | Jaboulet-Vercherre, Azelina | The physician, the Drinker, and the Drunk | da |
| 1816 | JAC1.1 | Jacquart, Danielle (ed.) | Recherches medievales sur la nature humaine. Essais sur la reflexion medicale (XIIe-XVe s.) | da |
| 1817 | JAC1.2 | Jacquart, Danielle | La médecine médiévale dans le cadre parisien : XIVe - XVe siècle | da |
| 1818 | JAC2.1 | Jacob, Christian (ed.) | Lieux de savoir. 2: Les mains de l'intellect | nu |
| 1819 | JAE1.1 | Jaeger, Werner | Aristotle.Fundamentals of the history of his Development | nu |
| 1820 | JAE1.2 | Jaeger, Werner | Paideia. La formation de l'homme grecque | da |
| 1821 | JAE1.3.1 | Jaeger, Werner | Scripta minora vol.1 | da |
| 1822 | JAE1.3.2 | Jaeger, Werner | Scripta minora vol.2 | da |
| 1823 | JAG1.1.1 | S. Wlodek, G. Zathey, M. Zwiercan | Catalogus codicum manuscriptorum medii aevi latinorum qui in bibliotheca Jagellonica Cracoviae asservantur, vol. 1 | da |
| 1824 | JAG1.1.2 | M. Kowalczyk, M. Markowski, G. Zathey, M. Zwiercan | Catalogus codicum manuscriptorum medii aevi latinorum qui in bibliotheca Jagellonica Cracoviae asservantur, vol. 2 | da |
| 1825 | JAG1.1.3 | M. Kowalczyk, A. Kozlowska, M. Markowski, S. Wlodek, G. Zathey, M. Zwiercan | Catalogus codicum manuscriptorum medii aevi latinorum qui in bibliotheca Jagellonica Cracoviae asservantur, vol. 3 | da |
