BOGNÁR MIKLÓS, Noémi. “JOSEF ANGSTER AND THE ANGSTER ORGAN FACTORY THE LIFE AND LEGACY OF THE MOST IMPORTANT FIGURE OF HUNGARIAN ORGAN BUILDING”. Studia Universitatis Babeș-Bolyai Musica, vol. 55, no. 1, June 2010, pp. 27-40, https://studia.reviste.ubbcluj.ro/index.php/subbmusica/article/view/8949.