| article html file updated | 24 March 2020 12:59 CET | Original file | https://www.mdpi.com/2313-5778/4/1/33 |
| article pdf uploaded. | 24 March 2020 12:57 CET | Version of Record | https://www.mdpi.com/2313-5778/4/1/33/pdf |
| article xml uploaded. | 24 March 2020 12:57 CET | Update | https://www.mdpi.com/2313-5778/4/1/33/xml |
| article xml file uploaded | 24 March 2020 12:57 CET | Original file | N/A |
