https://propertydna.org/
https://propertydna.org/spec/
https://propertydna.org/listings/AT-1130-WIEN-HIETZING-006.txt
https://propertydna.org/listings/AT-1090-WIEN-ALSERGRUND-005.txt
https://propertydna.org/listings/AT-1060-WIEN-MARIAHILF-004.txt
https://propertydna.org/listings/AT-1020-WIEN-LEOPOLDSTADT-003.txt
https://propertydna.org/listings/AT-1010-WIEN-DOMGASSE-002.txt