| article html file updated | 5 February 2020 18:45 CET | Update | https://www.mdpi.com/2079-4983/2/4/338 |
| article html file updated | 8 May 2019 21:45 CEST | Update | N/A |
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| article html file updated | 16 June 2015 20:20 CEST | Update | N/A |
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| article xml file uploaded | 14 August 2014 12:06 CEST | Update | https://www.mdpi.com/2079-4983/2/4/338/xml |
| article html file updated | 12 May 2014 15:32 CEST | Update | N/A |
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| article html file updated | 6 February 2013 23:43 CET | Update | N/A |
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| article html file updated | 29 January 2013 00:47 CET | Update | N/A |
| article html file updated | 26 January 2013 06:36 CET | Update | N/A |
| article html file updated | 23 January 2013 03:41 CET | Original file | N/A |
