| article html file updated | 6 February 2020 18:34 CET | Update | https://www.mdpi.com/2071-1050/7/5/5981 |
| article html file updated | 6 May 2019 20:09 CEST | Update | - |
| article html file updated | 26 March 2019 02:30 CET | Update | - |
| article html file updated | 21 August 2015 12:05 CEST | Update | - |
| article html file updated | 1 June 2015 09:12 CEST | Original file | - |
| article xml file uploaded | 1 June 2015 09:12 CEST | Original file | https://www.mdpi.com/2071-1050/7/5/5981/xml |
| article pdf uploaded. | 18 May 2015 15:43 CEST | Updated version of record | https://www.mdpi.com/2071-1050/7/5/5981/pdf |
| article pdf uploaded. | 13 May 2015 14:15 CEST | Version of Record | https://www.mdpi.com/2071-1050/7/5/5981/pdf-vor |
