Josef Heider: Regesten des Passauer Abteilandes (1934)
https://nbn-resolving.org/urn:nbn:de:bvb:355-ubr05360-7
Adam Maidhof: Die Passauer Urbare 1 (1933)
https://nbn-resolving.org/urn:nbn:de:bvb:355-ubr07211-2
Josef Heider: Regesten des Passauer Abteilandes (1934)
https://nbn-resolving.org/urn:nbn:de:bvb:355-ubr05360-7
Adam Maidhof: Die Passauer Urbare 1 (1933)
https://nbn-resolving.org/urn:nbn:de:bvb:355-ubr07211-2