| article html file updated | 5 February 2020 20:20 CET | Update | https://www.mdpi.com/2075-4450/3/2/453 |
| article html file updated | 19 September 2019 10:11 CEST | Update | - |
| article html file updated | 8 May 2019 18:22 CEST | Update | - |
| article html file updated | 25 March 2019 10:59 CET | Update | - |
| article html file updated | 16 June 2015 23:43 CEST | Update | - |
| article html file updated | 27 January 2015 07:02 CET | Update | - |
| article xml file uploaded | 27 January 2015 07:02 CET | Original file | https://www.mdpi.com/2075-4450/3/2/453/xml |
| article html file updated | 7 February 2013 12:09 CET | Update | - |
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| article html file updated | 29 January 2013 03:13 CET | Update | - |
| article html file updated | 26 January 2013 10:15 CET | Update | - |
| article html file updated | 23 January 2013 17:07 CET | Original file | - |
