| article html file updated | 8 February 2020 23:08 CET | Update | https://www.mdpi.com/2411-5142/2/4/45 |
| article html file updated | 28 September 2019 23:52 CEST | Update | N/A |
| article html file updated | 2 May 2019 10:38 CEST | Update | N/A |
| article html file updated | 18 April 2019 08:15 CEST | Update | N/A |
| article html file updated | 5 December 2017 10:27 CET | Original file | N/A |
| article xml uploaded. | 5 December 2017 10:26 CET | Original file | https://www.mdpi.com/2411-5142/2/4/45/xml |
| article pdf uploaded. | 5 December 2017 10:26 CET | Version of Record | https://www.mdpi.com/2411-5142/2/4/45/pdf |
