| article html file updated | 6 February 2020 05:50 CET | Update | https://www.mdpi.com/1999-4915/5/12/2946 |
| article html file updated | 7 May 2019 21:33 CEST | Update | - |
| article html file updated | 21 March 2019 08:25 CET | Update | - |
| article html file updated | 19 August 2015 11:24 CEST | Update | - |
| article html file updated | 28 April 2014 11:25 CEST | Original file | - |
| article xml file uploaded | 28 April 2014 11:25 CEST | Original file | https://www.mdpi.com/1999-4915/5/12/2946/xml |
| article pdf uploaded. | 28 November 2013 09:42 CET | Version of Record | https://www.mdpi.com/1999-4915/5/12/2946/pdf |
