| article html file updated | 5 February 2020 14:56 CET | Update | https://www.mdpi.com/1999-4915/2/7/1394 |
| article html file updated | 9 May 2019 05:30 CEST | Update | N/A |
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| article html file updated | 16 June 2015 10:39 CEST | Update | N/A |
| article html file updated | 14 August 2014 12:06 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/1999-4915/2/7/1394/xml |
| article html file updated | 6 February 2013 18:02 CET | Update | N/A |
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| article html file updated | 18 January 2013 07:57 CET | Original file | N/A |