| article html file updated | 5 February 2020 19:21 CET | Update | https://www.mdpi.com/2072-6694/4/1/88 |
| article html file updated | 8 May 2019 20:31 CEST | Update | - |
| article html file updated | 25 March 2019 09:13 CET | Update | - |
| article html file updated | 16 June 2015 21:34 CEST | Update | - |
| article html file updated | 7 February 2013 10:16 CET | Update | - |
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| article html file updated | 1 February 2013 09:27 CET | Update | - |
| article xml file uploaded | 1 February 2013 09:27 CET | Original file | https://www.mdpi.com/2072-6694/4/1/88/xml |
| article html file updated | 29 January 2013 01:37 CET | Update | - |
| article html file updated | 26 January 2013 07:58 CET | Update | - |
| article html file updated | 23 January 2013 09:21 CET | Original file | - |
