| article html file updated | 8 February 2020 08:49 CET | Update | https://www.mdpi.com/2071-1050/9/6/1044 |
| article html file updated | 25 September 2019 11:11 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:27 CEST | Update | N/A |
| article html file updated | 28 June 2017 14:50 CEST | Update | N/A |
| article html file updated | 21 June 2017 07:53 CEST | Original file | N/A |
| article xml uploaded. | 21 June 2017 07:52 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/1044/xml |
| article pdf uploaded. | 21 June 2017 07:52 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/1044/pdf |
