| article html file updated | 12 February 2020 12:35 CET | Update | https://www.mdpi.com/2411-5134/4/2/28 |
| article html file updated | 15 May 2019 12:23 CEST | Original file | - |
| article pdf uploaded. | 15 May 2019 12:22 CEST | Version of Record | https://www.mdpi.com/2411-5134/4/2/28/pdf |
| article xml uploaded. | 15 May 2019 12:22 CEST | Update | https://www.mdpi.com/2411-5134/4/2/28/xml |
| article xml file uploaded | 15 May 2019 12:22 CEST | Original file | - |
