| article html file updated | 5 February 2020 20:43 CET | Update | https://www.mdpi.com/2072-4292/4/6/1671 |
| article html file updated | 8 May 2019 17:30 CEST | Update | N/A |
| article html file updated | 25 March 2019 11:52 CET | Update | N/A |
| article html file updated | 17 June 2015 00:21 CEST | Update | N/A |
| article html file updated | 14 August 2014 12:05 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 12:05 CEST | Original file | https://www.mdpi.com/2072-4292/4/6/1671/xml |
| article html file updated | 7 February 2013 12:48 CET | Update | N/A |
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| article html file updated | 6 February 2013 08:10 CET | Update | N/A |
| article html file updated | 29 January 2013 04:23 CET | Update | N/A |
| article html file updated | 26 January 2013 11:05 CET | Update | N/A |
| article html file updated | 23 January 2013 19:33 CET | Original file | N/A |
