| article html file updated | 5 February 2020 19:58 CET | Update | https://www.mdpi.com/2075-4450/3/2/410 |
| article html file updated | 19 September 2019 09:34 CEST | Update | - |
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| article html file updated | 16 June 2015 22:56 CEST | Update | - |
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| article xml file uploaded | 27 January 2015 07:02 CET | Original file | https://www.mdpi.com/2075-4450/3/2/410/xml |
| article html file updated | 7 February 2013 11:32 CET | Update | - |
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| article html file updated | 26 January 2013 09:25 CET | Update | - |
| article html file updated | 23 January 2013 14:22 CET | Original file | - |