| article html file updated | 12 February 2020 11:02 CET | Update | https://www.mdpi.com/2414-4088/3/2/33 |
| article html file updated | 19 October 2019 19:29 CEST | Update | - |
| article html file updated | 9 May 2019 15:46 CEST | Original file | - |
| article pdf uploaded. | 9 May 2019 11:40 CEST | Version of Record | https://www.mdpi.com/2414-4088/3/2/33/pdf |
| article xml uploaded. | 9 May 2019 11:40 CEST | Update | https://www.mdpi.com/2414-4088/3/2/33/xml |
| article xml file uploaded | 9 May 2019 11:40 CEST | Original file | - |
