| article html file updated | 5 February 2020 21:39 CET | Update | https://www.mdpi.com/2073-4409/1/3/558 |
| article html file updated | 8 May 2019 15:30 CEST | Update | - |
| article html file updated | 20 March 2019 11:39 CET | Update | - |
| article html file updated | 17 June 2015 01:47 CEST | Update | - |
| article html file updated | 30 August 2013 09:06 CEST | Update | - |
| article xml file uploaded | 30 August 2013 09:05 CEST | Original file | https://www.mdpi.com/2073-4409/1/3/558/xml |
| article html file updated | 7 February 2013 14:29 CET | Update | - |
| article html file updated | 7 February 2013 05:32 CET | Update | - |
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| article html file updated | 27 January 2013 03:11 CET | Update | - |
| article html file updated | 24 January 2013 00:24 CET | Original file | - |
