| article html file updated | 9 May 2020 15:11 CEST | Original file | https://www.mdpi.com/2032-6653/11/2/39 |
| article pdf uploaded. | 9 May 2020 15:09 CEST | Version of Record | https://www.mdpi.com/2032-6653/11/2/39/pdf |
| article xml uploaded. | 9 May 2020 15:09 CEST | Update | https://www.mdpi.com/2032-6653/11/2/39/xml |
| article xml file uploaded | 9 May 2020 15:09 CEST | Original file | N/A |
