| article html file updated | 8 February 2020 23:06 CET | Update | https://www.mdpi.com/2071-1050/9/12/2246 |
| article html file updated | 2 May 2019 10:42 CEST | Update | - |
| article html file updated | 18 April 2019 08:19 CEST | Update | - |
| article html file updated | 2 January 2018 18:13 CET | Update | - |
| article html file updated | 5 December 2017 06:59 CET | Original file | - |
| article xml uploaded. | 5 December 2017 06:58 CET | Original file | https://www.mdpi.com/2071-1050/9/12/2246/xml |
| article pdf uploaded. | 5 December 2017 06:58 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2246/pdf |
