Bd. 1. 1848
https://books.google.com/books?id=QPorAQAAIAAJ
https://books.google.com/books?id=3dw5AAAAcAAJ
https://books.google.com/books?id=UN5pAAAAMAAJ
https://books.google.com/books?id=XP0sAAAAYAAJ
https://books.google.com/books?id=jjpjAAAAcAAJ
https://books.google.com/books?id=vf9oH4JzhxkC
https://archive.org/details/berhmtedeutsche00ungegoog
https://archive.org/details/bub_gb_UN5pAAAAMAAJ
http://www.mdz-nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:bvb:12-bs...
http://www.mdz-nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:bvb:12-bs...
http://hdl.handle.net/2027/wu.89097247613
http://hdl.handle.net/2027/uc1.b3263398
http://hdl.handle.net/2027/hvd.hwj66s
Bd. 2. 1848
https://books.google.com/books?id=QPorAQAAIAAJ&pg=PA407
https://books.google.com/books?id=6dw5AAAAcAAJ
https://books.google.com/books?id=UN5pAAAAMAAJ&pg=PA397
https://books.google.com/books?id=ljpjAAAAcAAJ
https://books.google.com/books?id=HPMsAAAAYAAJ
https://books.google.com/books?id=vf9oH4JzhxkC&pg=PA403
https://archive.org/stream/berhmtedeutsche00ungegoog#page/n413
https://archive.org/stream/bub_gb_UN5pAAAAMAAJ#page/n411
http://www.mdz-nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:bvb:12-bs...
http://www.mdz-nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:bvb:12-bs...
http://hdl.handle.net/2027/wu.89097247613?urlappend=%3Bseq=413
http://hdl.handle.net/2027/uc1.b3263398?urlappend=%3Bseq=429
http://hdl.handle.net/2027/hvd.hwj66r
Bd. 1. 1848
https://books.google.com/books?id=UN5pAAAAMAAJ&pg=PR11
https://archive.org/stream/berhmtedeutsche00ungegoog#page/n15
http://reader.digitale-sammlungen.de/de/fs1/object/display/bsb11236549_0...
http://hdl.handle.net/2027/wu.89097247613?urlappend=%3Bseq=15
Bd. 2. 1848
https://books.google.com/books?id=UN5pAAAAMAAJ&pg=PA401
https://archive.org/stream/berhmtedeutsche00ungegoog#page/n421
http://reader.digitale-sammlungen.de/de/fs1/object/display/bsb11236550_0...
http://hdl.handle.net/2027/wu.89097247613?urlappend=%3Bseq=417
Wikipedia, dt.
https://de.wikipedia.org/wiki/Alexander_von_Ungern-Sternberg
Allgemeine Deutsche Biographie 39 (1895), S. 299-302
http://www.deutsche-biographie.de/pnd118763733.html?anchor=adb