In Dortmund talks were presented in Arabic, Farsi, Portuguese, Spanish, and Russian; at Frankfurt in English, French, and Serbian / ​ Croatian; at Hamburg in Danish, Dutch, Swedish, and Tamil; at Leipzig in Chinese, Polish, and Turkish; and at Munich in Greek, Italian, and German Sign Language.
प्राग में हुए अधिवेशन में सभी भाषण अँग्रेज़ी, चेक और रूसी भाषा में पेश किए गए ।