| article html file updated | 9 February 2020 18:48 CET | Update | https://www.mdpi.com/1999-4907/9/6/287 |
| article html file updated | 3 October 2019 21:51 CEST | Update | - |
| article html file updated | 30 April 2019 17:11 CEST | Update | - |
| article html file updated | 16 April 2019 17:38 CEST | Update | - |
| article html file updated | 30 March 2019 04:02 CET | Update | - |
| article html file updated | 26 June 2018 05:26 CEST | Update | - |
| article html file updated | 24 May 2018 06:33 CEST | Original file | - |
| article pdf uploaded. | 24 May 2018 06:32 CEST | Version of Record | https://www.mdpi.com/1999-4907/9/6/287/pdf |
| article xml uploaded. | 24 May 2018 06:32 CEST | Update | https://www.mdpi.com/1999-4907/9/6/287/xml |
| article xml file uploaded | 24 May 2018 06:32 CEST | Original file | - |
