| article html file updated | 5 February 2020 20:13 CET | Update | https://www.mdpi.com/2072-6694/4/2/475 |
| article html file updated | 8 May 2019 18:37 CEST | Update | N/A |
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| article html file updated | 16 June 2015 23:28 CEST | Update | N/A |
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| article html file updated | 1 February 2013 09:34 CET | Update | N/A |
| article xml file uploaded | 1 February 2013 09:34 CET | Original file | https://www.mdpi.com/2072-6694/4/2/475/xml |
| article html file updated | 29 January 2013 03:02 CET | Update | N/A |
| article html file updated | 26 January 2013 10:00 CET | Update | N/A |
| article html file updated | 23 January 2013 16:17 CET | Original file | N/A |
