| article html file updated | 8 February 2020 03:26 CET | Update | https://www.mdpi.com/2071-1050/9/4/596 |
| article html file updated | 24 September 2019 06:53 CEST | Update | - |
| article html file updated | 4 May 2019 02:29 CEST | Update | - |
| article html file updated | 28 April 2017 11:02 CEST | Update | - |
| article html file updated | 17 April 2017 12:51 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 12:50 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/596/xml |
| article pdf uploaded. | 17 April 2017 12:50 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/596/pdf |
| article pdf uploaded. | 12 April 2017 12:23 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/596/pdf-vor |
