Journal of „Frontiers in Environmental Science“
http://journal.frontiersin.org/Journal/10.3389/fenvs.2014.00019/abstract

Source: http://www.heilpraxisnet.de/naturhe...-aller-zeiten-gemessen-9018534455822.php

Unfortunately, it is not possible through Windows to receive the abstract of the article.

Therefore, this way:

Attachments
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Last edited by Denglisch; 07/10/14 07:48 AM.