| article html file updated | 9 February 2020 00:29 CET | Update | https://www.mdpi.com/2411-5142/2/4/48 |
| article html file updated | 29 September 2019 07:40 CEST | Update | - |
| article html file updated | 2 May 2019 07:40 CEST | Update | - |
| article html file updated | 18 April 2019 05:30 CEST | Update | - |
| article html file updated | 19 December 2017 08:31 CET | Original file | - |
| article xml uploaded. | 19 December 2017 08:30 CET | Update | https://www.mdpi.com/2411-5142/2/4/48/xml |
| article xml uploaded. | 19 December 2017 08:30 CET | Original file | - |
| article pdf uploaded. | 19 December 2017 08:30 CET | Version of Record | https://www.mdpi.com/2411-5142/2/4/48/pdf |
