| article html file updated | 5 February 2020 20:25 CET | Update | https://www.mdpi.com/2079-4983/3/2/361 |
| article html file updated | 8 May 2019 18:09 CEST | Update | N/A |
| article html file updated | 25 March 2019 11:13 CET | Update | N/A |
| article html file updated | 16 June 2015 23:53 CEST | Update | N/A |
| article html file updated | 18 March 2014 09:43 CET | Update | N/A |
| article xml file uploaded | 18 March 2014 09:43 CET | Original file | https://www.mdpi.com/2079-4983/3/2/361/xml |
| article html file updated | 7 February 2013 12:18 CET | Update | N/A |
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| article html file updated | 26 January 2013 10:27 CET | Update | N/A |
| article html file updated | 23 January 2013 17:38 CET | Original file | N/A |
