Anna Shuvalova, “Floating Sound Galeery in Alexandrinsky Theater: interview with Patrick K.-H.” chaskor.ru (Russian)
http://www.chaskor.ru/article/galereya_plavayushchego_zvuka_v_aleksandrinskom_teatre_36096
in Russian.
http://www.chaskor.ru/article/galereya_plavayushchego_zvuka_v_aleksandrinskom_teatre_36096
in Russian.