| article html file updated | 8 February 2020 06:59 CET | Update | https://www.mdpi.com/2071-1050/9/6/909 |
| article html file updated | 25 September 2019 01:45 CEST | Update | - |
| article html file updated | 3 May 2019 19:54 CEST | Update | - |
| article html file updated | 28 June 2017 14:34 CEST | Update | - |
| article pdf uploaded. | 1 June 2017 08:46 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/909/pdf |
| article html file updated | 31 May 2017 13:17 CEST | Update | - |
| article xml uploaded. | 31 May 2017 13:16 CEST | Update | https://www.mdpi.com/2071-1050/9/6/909/xml |
| article pdf uploaded. | 31 May 2017 13:16 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/909/pdf-vor |
| article html file updated | 29 May 2017 12:08 CEST | Original file | - |
| article pdf uploaded. | 29 May 2017 12:07 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/909/pdf-vor |
