| article html file updated | 9 February 2020 11:08 CET | Update | https://www.mdpi.com/1999-4907/9/4/166 |
| article html file updated | 1 October 2019 22:43 CEST | Update | - |
| article html file updated | 1 May 2019 08:59 CEST | Update | - |
| article html file updated | 17 April 2019 08:54 CEST | Update | - |
| article html file updated | 29 March 2019 09:31 CET | Update | - |
| article html file updated | 1 May 2018 11:21 CEST | Update | - |
| article html file updated | 24 March 2018 10:30 CET | Original file | - |
| article xml uploaded. | 24 March 2018 10:28 CET | Update | https://www.mdpi.com/1999-4907/9/4/166/xml |
| article pdf uploaded. | 24 March 2018 10:28 CET | Version of Record | https://www.mdpi.com/1999-4907/9/4/166/pdf |
