B125/11 B138/11, Constitutional Court of Austria (12 December 2012)
Same-sex partners who have registered partnerships should be entitled to use the same ceremony as opposite-sex couples for marriage. Any difference in the treatment between marriage and registered partnerships can only be justified by particularly serious reasons.
B 125/11, B 138/11, Constitutional Court of Austria (12 december 2012), (Full text of judgment in German, PDF)