| article html file updated | 11 February 2020 03:01 CET | Update | https://www.mdpi.com/2411-5134/3/4/81 |
| article html file updated | 11 October 2019 22:12 CEST | Update | - |
| article html file updated | 27 April 2019 19:46 CEST | Update | - |
| article html file updated | 13 April 2019 15:38 CEST | Update | - |
| article html file updated | 2 April 2019 12:50 CEST | Update | - |
| article html file updated | 13 December 2018 13:02 CET | Original file | - |
| article pdf uploaded. | 13 December 2018 13:00 CET | Version of Record | https://www.mdpi.com/2411-5134/3/4/81/pdf |
| article xml uploaded. | 13 December 2018 13:00 CET | Update | https://www.mdpi.com/2411-5134/3/4/81/xml |
| article xml file uploaded | 13 December 2018 13:00 CET | Original file | - |
