Medien-Echo zur ITB 2017
http://wirtschaft.eifel.info/2017/03/13/astrotourismus-braucht-dunkelheit/
http://wirtschaft.eifel.info/2017/03/09/zugaenglich-und-begreifbar/
http://newsroom.itb-berlin.de/de/tags/harald-bardenhagen
http://www.presseportal.de/pm/6600/3575997
https://www.mittelstand-nachrichten.de/messe/itb-berlin-nachhaltiger-tourismus-20170306.html
https://www.mittelstand-nachrichten.de/messe/itb-berlin-nachhaltiger-tourismus-20170306.html
http://lifestyle-trends.net/nachhaltiger-und-verantwortungsvoller-tourismus-im-fokus-der-itb-berlin/
http://news-dg.de/segment-adventure-travel-responsible-tourism-itb-2017/
http://daytrip.tv/news/focus-on-sustainable-and-responsible-tourism-at-itb-berlin/
https://greenwatchbd.com/sustainable-responsible-tourism-to-be-focus-of-itb-berlin/
https://travelwirenews.com/concentrate-on-sustainable-and-responsible-tourism-with-itb-berlin-11494/
http://www.turkiyeturizm.com/news_print.php?id=52536
http://www.turkiyeturizm.com/news_detail.php?id=52536
http://umweltdienstleister.de/2017/03/03/tourismus-nachhaltig-gestalten/
https://www.yahoo.com/news/stargazing-keeps-tourism-looking-034140106.html
http://www.travelmole.com/news_feature.php?news_id=2026191
http://www.hospitalitynet.org/news/4081510.html
http://mediaindia.eu/news-india-you/india-to-present-unique-tourism-products-in-itb-berlin/
http://www.hoteliermaldives.com/focus-sustainable-responsible-tourism-itb-berlin/
http://www.4hoteliers.com/itb/newsarticle/538
http://business.inquirer.net/226079/stargazing-keeps-tourism-looking
http://www.freemalaysiatoday.com/category/leisure/2017/03/12/stargazing-keeps-tourism-looking-up/
https://brusselsdiplomatic.com/2016/10/26/itb-2017-berlin-astronomy-as-a-tourist-attraction/
https://etn.travel/focus-sustainable-responsible-tourism-itb-berlin-14665/
http://hailscience.com/2017/03/11/stargazing-keeps-tourism-looking-up/
http://etn.travel/itb-berlin-astronomy-tourist-attraction-1434/
https://www.traveldailynews.com/post/itb-berlin-astronomy-as-a-tourist-attraction
http://m.hospitalitynet.org/news/4078800.html