Documents about HK Gruber's last opera 'Geschichten aus dem Wiener Wald'

Following the world première performance of HK Gruber's new opera Geschichten aus dem Wiener Wald in Bregenz (see below), I have acquired the following items related to the composer and his opera :

- Andrea Zschunke : HK Gruber - Musik in Kommunikation, Verlag Lafite, 2014 ;
- HK Gruber : Geschichten aus dem Wiener Wald, program book from the Bregenz Festival ;
- HK Gruber / Michael Sturminger : Geschichten aus dem Wiener Wald, Boosey & Hawkes, libretto.