| article html file updated | 6 February 2020 00:44 CET | Update | https://www.mdpi.com/2079-6374/3/1/116 |
| article html file updated | 19 September 2019 18:19 CEST | Update | - |
| article html file updated | 8 May 2019 07:59 CEST | Update | - |
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| article html file updated | 17 June 2015 06:55 CEST | Update | - |
| article html file updated | 26 August 2014 03:59 CEST | Update | - |
| article xml file uploaded | 26 August 2014 03:59 CEST | Update | https://www.mdpi.com/2079-6374/3/1/116/xml |
| article html file updated | 25 March 2013 10:53 CET | Original file | - |
| article pdf uploaded. | 1 March 2013 16:59 CET | Updated version of record | https://www.mdpi.com/2079-6374/3/1/116/pdf |
| article pdf uploaded. | 28 February 2013 12:06 CET | Version of Record | https://www.mdpi.com/2079-6374/3/1/116/pdf-vor |