| article html file updated | 8 February 2020 22:04 CET | Update | https://www.mdpi.com/2071-1050/9/12/2158 |
| article html file updated | 28 September 2019 17:18 CEST | Update | - |
| article html file updated | 2 May 2019 13:01 CEST | Update | - |
| article html file updated | 18 April 2019 10:40 CEST | Update | - |
| article html file updated | 2 January 2018 17:15 CET | Update | - |
| article html file updated | 23 November 2017 15:53 CET | Original file | - |
| article xml uploaded. | 23 November 2017 15:52 CET | Update | https://www.mdpi.com/2071-1050/9/12/2158/xml |
| article xml uploaded. | 23 November 2017 15:52 CET | Original file | - |
| article pdf uploaded. | 23 November 2017 15:52 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2158/pdf |
