| article html file updated | 13 February 2020 23:36 CET | Update | https://www.mdpi.com/2313-4321/4/4/40 |
| article html file updated | 10 October 2019 13:22 CEST | Original file | N/A |
| article pdf uploaded. | 10 October 2019 13:21 CEST | Version of Record | https://www.mdpi.com/2313-4321/4/4/40/pdf |
| article xml uploaded. | 10 October 2019 13:21 CEST | Update | https://www.mdpi.com/2313-4321/4/4/40/xml |
| article xml file uploaded | 10 October 2019 13:21 CEST | Original file | N/A |
