| article html file updated | 5 February 2020 21:19 CET | Update | https://www.mdpi.com/2073-4352/2/3/1067 |
| article html file updated | 8 May 2019 16:12 CEST | Update | - |
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| article html file updated | 17 June 2015 01:16 CEST | Update | - |
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| article xml file uploaded | 3 March 2015 06:58 CET | Original file | https://www.mdpi.com/2073-4352/2/3/1067/xml |
| article html file updated | 7 February 2013 13:48 CET | Update | - |
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| article html file updated | 26 January 2013 15:46 CET | Update | - |
| article html file updated | 23 January 2013 22:40 CET | Original file | - |
