| article html file updated | 6 February 2020 05:41 CET | Update | https://www.mdpi.com/1999-4915/5/11/2803 |
| article html file updated | 7 May 2019 21:50 CEST | Update | - |
| article html file updated | 21 March 2019 08:01 CET | Update | - |
| article html file updated | 19 August 2015 10:28 CEST | Update | - |
| article html file updated | 7 January 2014 12:36 CET | Original file | - |
| article xml file uploaded | 7 January 2014 12:36 CET | Original file | https://www.mdpi.com/1999-4915/5/11/2803/xml |
| article pdf uploaded. | 21 November 2013 12:21 CET | Version of Record | https://www.mdpi.com/1999-4915/5/11/2803/pdf |
