| article html file updated | 9 February 2020 14:17 CET | Update | https://www.mdpi.com/1999-4907/9/4/215 |
| article html file updated | 2 October 2019 17:40 CEST | Update | - |
| article html file updated | 1 May 2019 02:33 CEST | Update | - |
| article html file updated | 17 April 2019 03:03 CEST | Update | - |
| article html file updated | 29 March 2019 16:46 CET | Update | - |
| article html file updated | 1 May 2018 11:39 CEST | Update | - |
| article html file updated | 18 April 2018 10:08 CEST | Original file | - |
| article pdf uploaded. | 18 April 2018 10:07 CEST | Version of Record | https://www.mdpi.com/1999-4907/9/4/215/pdf |
| article xml uploaded. | 18 April 2018 10:07 CEST | Update | https://www.mdpi.com/1999-4907/9/4/215/xml |
| article xml file uploaded | 18 April 2018 10:07 CEST | Original file | - |
