| article html file updated | 8 May 2021 05:04 CEST | Original file | https://www.mdpi.com/2224-2708/10/2/32 |
| article pdf uploaded. | 8 May 2021 05:03 CEST | Updated version of record | https://www.mdpi.com/2224-2708/10/2/32/pdf |
| article xml uploaded. | 8 May 2021 05:03 CEST | Update | https://www.mdpi.com/2224-2708/10/2/32/xml |
| article xml file uploaded | 8 May 2021 05:03 CEST | Original file | N/A |
| article pdf uploaded. | 6 May 2021 13:55 CEST | Version of Record | https://www.mdpi.com/2224-2708/10/2/32/pdf-vor |
