| article html file updated | 6 February 2020 09:55 CET | Update | https://www.mdpi.com/2071-1050/6/6/3802 |
| article html file updated | 7 May 2019 13:12 CEST | Update | - |
| article html file updated | 21 March 2019 18:44 CET | Update | - |
| article html file updated | 20 August 2015 09:45 CEST | Update | - |
| article html file updated | 27 June 2014 12:34 CEST | Original file | - |
| article xml file uploaded | 27 June 2014 12:34 CEST | Original file | https://www.mdpi.com/2071-1050/6/6/3802/xml |
| article pdf uploaded. | 17 June 2014 11:15 CEST | Updated version of record | https://www.mdpi.com/2071-1050/6/6/3802/pdf |
| article pdf uploaded. | 12 June 2014 16:28 CEST | Version of Record | https://www.mdpi.com/2071-1050/6/6/3802/pdf-vor |
