| article html file updated | 5 February 2020 18:12 CET | Update | https://www.mdpi.com/2073-4409/1/1/3 |
| article html file updated | 19 September 2019 06:06 CEST | Update | N/A |
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| article xml file uploaded | 28 April 2014 10:42 CEST | Update | https://www.mdpi.com/2073-4409/1/1/3/xml |
| article html file updated | 30 August 2013 09:03 CEST | Update | N/A |
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| article html file updated | 7 February 2013 09:22 CET | Update | N/A |
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| article html file updated | 28 January 2013 23:52 CET | Update | N/A |
| article html file updated | 26 January 2013 05:12 CET | Update | N/A |
| article html file updated | 22 January 2013 22:43 CET | Original file | N/A |
