| article html file updated | 6 February 2020 13:44 CET | Update | https://www.mdpi.com/1999-4915/6/11/4437 |
| article html file updated | 7 May 2019 05:19 CEST | Update | N/A |
| article html file updated | 25 March 2019 17:55 CET | Update | N/A |
| article html file updated | 21 August 2015 02:16 CEST | Update | N/A |
| article html file updated | 28 November 2014 11:05 CET | Original file | N/A |
| article xml file uploaded | 28 November 2014 11:05 CET | Original file | https://www.mdpi.com/1999-4915/6/11/4437/xml |
| article pdf uploaded. | 18 November 2014 15:06 CET | Version of Record | https://www.mdpi.com/1999-4915/6/11/4437/pdf |
