| article html file updated | 5 February 2020 13:22 CET | Update | https://www.mdpi.com/2072-6643/2/1/16 |
| article html file updated | 9 May 2019 08:47 CEST | Update | - |
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| article html file updated | 11 November 2015 10:26 CET | Update | - |
| article xml file uploaded | 11 November 2015 10:26 CET | Original file | https://www.mdpi.com/2072-6643/2/1/16/xml |
| article html file updated | 16 June 2015 07:55 CEST | Update | - |
| article html file updated | 6 February 2013 16:22 CET | Update | - |
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| article html file updated | 25 January 2013 20:44 CET | Update | - |
| article html file updated | 21 January 2013 19:26 CET | Update | - |
| article html file updated | 18 January 2013 01:30 CET | Original file | - |
