| article html file updated | 6 February 2020 10:40 CET | Update | https://www.mdpi.com/1999-4915/6/7/2708 |
| article html file updated | 7 May 2019 11:42 CEST | Update | N/A |
| article html file updated | 21 March 2019 20:45 CET | Update | N/A |
| article html file updated | 20 August 2015 12:39 CEST | Update | N/A |
| article html file updated | 29 July 2014 11:05 CEST | Original file | N/A |
| article xml file uploaded | 29 July 2014 11:05 CEST | Original file | https://www.mdpi.com/1999-4915/6/7/2708/xml |
| article supplementary file uploaded. | 14 July 2014 14:14 CEST | - | https://www.mdpi.com/1999-4915/6/7/2708#supplementary |
| article pdf uploaded. | 14 July 2014 14:14 CEST | Version of Record | https://www.mdpi.com/1999-4915/6/7/2708/pdf |
