[ ] RLH Young, David. “Voice Tunnel.” Inventing Interactive. 12 Aug., 2013. Web. 19 Aug., 2013. (english) http://www.inventinginteractive.com/2013/08/12/voice-tunnel/?utm_source=rss&utm_medium=rss&utm_campaign=voice-tunnel
[ ] RLH[ ] RLHYoung, David. “Voice Tunnel.” Inventing Interactive. 12 Aug., 2013. Web. 19 Aug., 2013. (english)http://www.inventinginteractive.com/2013/08/12/voice-tunnel/?utm_source=rss&utm_medium=rss&utm_campaign=voice-tunnel
[ ] RLHYoung, David. “Voice Tunnel.” Inventing Interactive. 12 Aug., 2013. Web. 19 Aug., 2013. (english)http://www.inventinginteractive.com/2013/08/12/voice-tunnel/?utm_source=rss&utm_medium=rss&utm_campaign=voice-tunnel
[ ] RLH[ ] RLHYoung, David. “Voice Tunnel.” Inventing Interactive. 12 Aug., 2013. Web. 19 Aug., 2013. (english)http://www.inventinginteractive.com/2013/08/12/voice-tunnel/?utm_source=rss&utm_medium=rss&utm_campaign=voice-tunnel