| article html file updated | 12 February 2020 16:19 CET | Update | https://www.mdpi.com/2414-4088/3/2/39 |
| article html file updated | 21 October 2019 00:06 CEST | Update | - |
| article html file updated | 30 May 2019 08:52 CEST | Original file | - |
| article pdf uploaded. | 30 May 2019 08:50 CEST | Version of Record | https://www.mdpi.com/2414-4088/3/2/39/pdf |
| article xml uploaded. | 30 May 2019 08:50 CEST | Update | https://www.mdpi.com/2414-4088/3/2/39/xml |
| article xml file uploaded | 30 May 2019 08:50 CEST | Original file | - |
