| article html file updated | 5 February 2020 19:08 CET | Update | https://www.mdpi.com/2072-6694/4/1/11 |
| article html file updated | 8 May 2019 20:57 CEST | Update | - |
| article html file updated | 25 March 2019 08:48 CET | Update | - |
| article html file updated | 16 June 2015 21:09 CEST | Update | - |
| article html file updated | 7 February 2013 09:47 CET | Update | - |
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| article html file updated | 6 February 2013 05:35 CET | Update | - |
| article html file updated | 1 February 2013 09:32 CET | Update | - |
| article xml file uploaded | 1 February 2013 09:31 CET | Original file | https://www.mdpi.com/2072-6694/4/1/11/xml |
| article html file updated | 29 January 2013 01:20 CET | Update | - |
| article html file updated | 26 January 2013 07:32 CET | Update | - |
| article html file updated | 23 January 2013 07:49 CET | Original file | - |
