| Zur Systematik | UB Regensburg | 
| Iteration | SK 470 	  SK 910  | 
| Ithaka | LF 2356 	  | 
| Ithakē | LF 2356 	  | 
| Iʿtimād as-Salṭana, Muḥammad Ḥasan Ibn-ʿAlī | EV 6830 - EV 6831 	  | 
| Itinerar | FT 21700 	  | 
| Itineraria Antonini Augusti | FX 275398 - FX 275405 	  | 
| Iʿtiṣāmī, Parwīn | EV 6836 - EV 6837 	  | 
| Itō, Takami | EI 6092 - EI 6093 	  | 
| Itonama | EE 8241 	  | 
| Iturralde, Juan | IP 4154 	  | 
| Itzá-Sprache | EE 6186 	  | 
| Iudicium vocalium | FH 65802 	  | 
| Iulia, Balbilla | FH 62448 - FH 62453 	  | 
| Iulia Maesa, Römisches Reich, Kaiserin | NH 7625 	  | 
| Iulia Mamaea, Römisches Reich, Kaiserin | NH 7625 	  | 
| Iulianus, Aegyptius | FK 35248 - FK 35253 	  | 
| Iulianus, Halicarnassensis | FK 35298 - FK 35303 	  | 
| Iulianus, Laodicensis | FH 71248 - FH 71253 	  | 
| Iulianus, Toletanus | FY 31598 - FY 31603 	  | 
| Iulius Valerius, Alexander Polemius | FX 273698 - FX 273905 	  | 
| Iulius Victor, Gaius | FX 291298 - FX 291305 	  | 
| Iuncus, Philosophus | FH 61148 - FH 61153 	  | 
| Iuppiter Confutatus | FH 65803 	  | 
| Iuppiter Tragoedus | FH 65804 	  | 
| Iustinus, Lippiensis | FY 31648 - FY 31653 	  | 
| Iustinus, Marcus Iunianus | FX 275498 - FX 276555 	  NH 4050 - NH 4053  | 
| Iuvenalis, Decimus Iunius | FX 228098 - FX 228155 	  NH 4060 - NH 4063  | 
| Iuvencus, Gaius Vettius Aquilinus | FX 283498 - FX 283505 	  | 
| Iuventius, Comicus | FX 119698 - FX 119705 	  | 
| Ivančan, Dubravko | KW 8155 - KW 8156 	  | 
| Ivanenko, Oksana Dmytrivna | KL 8301 - KL 8302 	  | 
| Ivanišević, Drago | KW 5423 - KW 5424 	  | 
| Ivanišević, Ivan | KW 2800 - KW 2801 	  | 
| Ivanji, Ivan | KW 8160 - KW 8161 	  | 
| Ivanov, Anatolij Stepanovič | KK 4775 - KK 4776 	  | 
| Ivanov, Blagoja | KZ 8293 - KZ 8294 	  | 
| Ivanov, Georgij Vladimirovič | KK 4781 - KK 4782 	  | 
| Ivanov, Mitko | KZ 2373 - KZ 2374 	  | 
| Ivanov, Vjačeslav I. | KI 4070 - KI 4076 	  | 
| Ivanov, Vsevolod | KK 4790 - KK 4795 	  | 
| Ivanović, Aleksandar | KW 8170 - KW 8171 	  | 
| Ivanovski, Srbo | KZ 8400 - KZ 8401 	  | 
| Ivo, Lêdo | IQ 91010 - IQ 91011 	  | 
| Ivo, Pedro | IR 6830 - IR 6831 	  | 
| Iwan IV., Russland, Zar | KF 1777 	  KH 4150 - KH 4151  | 
| Iwaniuk, Wacław | KP 2971 - KP 2972 	  | 
| Iwanowo (Russland) | LO 76385 	  | 
| Iwańska, Alicja | KP 7673 - KP 7674 	  | 
| Iwasawa, Kenkichi | SF 4460 	  | 
| Iwaszkiewicz, Jarosław | KP 2980 - KP 2985 	  | 
| Ixil | EE 5881 	  | 
| Izaguirre, Carlos | IQ 26400 - IQ 26401 	  | 
| Izarsʹkyj, Oleksa | KL 8320 - KL 8321 	  | 
| Izbornik Svjatoslava (1073) | KH 4160 - KH 4161 	  | 
| Izcaray, Jesús | IP 4157 	  | 
| Izmajlov, Vladimir Vasil'evič | KH 6670 - KH 6671 	  | 
| Izmir | LF 3740 	  | 
| Iznik | LF 2825 	  | 
| Izoard, Jacques | IH 51880 - IH 51881 	  | 
| J. von Staudingers Kommentar zum bürgerlichen Gesetzbuch | PD 2200 	  | 
| J. von Staudingers Kommentar zum Bürgerlichen Gesetzbuch mit Einführungsgesetz und Nebengesetzen | PD 2200 	  | 
| Jabès, Edmond | IH 51920 - IH 51921 	  | 
| Jablonský, Boleslav | KS 4970 - KS 4971 	  | 
| Jacalteco-Sprache | EE 5889 	  | 
| Jaccard, Roland | IH 51960 - IH 51961 	  | 
| Jaccottet, Philippe | IH 52000 - IH 52001 	  | 
| Jachimowicz, Marian | KP 7563 - KP 7564 	  | 
| Jachowicz, Stanisław | KO 8080 - KO 8081 	  | 
| Jackiv, Mychajlo Jurijovyč | KL 6000 - KL 6001 	  | 
| Jackson, Helen Hunt | HT 5770 - HT 5775 	  | 
| Jackson, Shirley | HU 3966 - HU 3967 	  | 
| Jackson-Anfall | YG 6100 - YG 6199 	  | 
| Jackson-Methode | ST 230 	  | 
| Jacob, Barbireau | LP 22696 	  LU 22696  | 
| Jacob, Elisabeth | GN 3646 - GN 3647 	  | 
| Jacob, Heinrich Eduard | GM 3896 - GM 3897 	  | 
| Jacob, Mathilde | NY 9095 	  | 
| Jacobbi, Ruggero | IV 30720 - IV 30721 	  | 
| Jacobi, Friedrich Heinrich | CF 4900 - CF 4917 	  GI 5380 - GI 5383  | 
| Jacobi, Johann Georg | GI 5385 - GI 5388 	  | 
| Jacobi-Polynome | SK 680 	  | 
| Jacobowski, Ludwig | GM 3901 - GM 3904 	  | 
| Jacobs, Harriet A. | HT 5800 - HT 5801 	  | 
| Jacobs, William W. | HM 3120 - HM 3125 	  | 
| Jacobus, Bulgariae | FK 29698 - FK 29703 	  | 
| Jacobus, Coccinobaphus | FK 29798 - FK 29803 	  | 
| Jacobus, de Hattem | FY 30298 - FY 30303 	  | 
| Jacobus, de Misa | KS 2665 - KS 2666 	  | 
| Jacoby, Johann | NP 2471 	  | 
| Jacoby, Leopold | GL 5807 - GL 5810 	  | 
| Jacopo, della Quercia | LI 44160 	  | 
| Jacquemard, Simonne | IH 52080 - IH 52081 	  | 
| Jacquemart, Nicolas-François | IG 2283 	  | 
| Jäckh, Ernst | NP 4592 	  | 
| Jaeckle, Erwin | GN 6691 - GN 6692 	  | 
| Jaeger, Henry | GN 6705 - GN 6706 	  | 
| Jägersprache | GD 8775 	  HF 135 HF 633  | 
| Jaeggi, Urs | GN 6709 - GN 6710 	  | 
| Jagd | AR 13680 	  LC 21000 - LC 21730 ZC 91800  | 
| © Universitätsbibliothek Regensburg, realisiert von Sepp Kuffer |