| article html file updated | 6 February 2020 13:39 CET | Update | https://www.mdpi.com/1999-4915/6/11/4422 |
| article html file updated | 7 May 2019 05:30 CEST | Update | - |
| article html file updated | 25 March 2019 17:43 CET | Update | - |
| article html file updated | 29 June 2017 13:28 CEST | Update | - |
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| article html file updated | 21 August 2015 02:04 CEST | Update | - |
| article html file updated | 28 November 2014 11:05 CET | Original file | - |
| article xml file uploaded | 28 November 2014 11:05 CET | Original file | https://www.mdpi.com/1999-4915/6/11/4422/xml |
| article pdf uploaded. | 14 November 2014 14:38 CET | Version of Record | https://www.mdpi.com/1999-4915/6/11/4422/pdf |
