| article html file updated | 8 February 2020 03:29 CET | Update | https://www.mdpi.com/2071-1050/9/4/597 |
| article html file updated | 24 September 2019 07:06 CEST | Update | - |
| article html file updated | 4 May 2019 02:24 CEST | Update | - |
| article html file updated | 28 April 2017 11:02 CEST | Update | - |
| article html file updated | 17 April 2017 12:46 CEST | Update | - |
| article xml uploaded. | 17 April 2017 12:45 CEST | Update | https://www.mdpi.com/2071-1050/9/4/597/xml |
| article pdf uploaded. | 17 April 2017 12:45 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/597/pdf |
| article html file updated | 13 April 2017 10:01 CEST | Original file | - |
| article pdf uploaded. | 13 April 2017 09:59 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/597/pdf-vor |
