| article html file updated | 5 February 2020 17:39 CET | Update | https://www.mdpi.com/2079-9268/1/2/277 |
| article html file updated | 9 May 2019 00:03 CEST | Update | N/A |
| article html file updated | 20 March 2019 08:27 CET | Update | N/A |
| article html file updated | 16 June 2015 17:08 CEST | Update | N/A |
| article html file updated | 14 August 2014 12:06 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/2079-9268/1/2/277/xml |
| article html file updated | 6 February 2013 21:45 CET | Update | N/A |
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| article html file updated | 28 January 2013 22:59 CET | Update | N/A |
| article html file updated | 26 January 2013 03:34 CET | Update | N/A |
| article html file updated | 22 January 2013 18:49 CET | Original file | N/A |
