| article html file updated | 16 June 2021 02:53 CEST | Update | https://www.mdpi.com/2304-6732/8/6/219 |
| article pdf uploaded. | 16 June 2021 02:52 CEST | Updated version of record | https://www.mdpi.com/2304-6732/8/6/219/pdf |
| article xml uploaded. | 16 June 2021 02:52 CEST | Update | https://www.mdpi.com/2304-6732/8/6/219/xml |
| article xml file uploaded | 16 June 2021 02:52 CEST | Update | N/A |
| article html file updated | 13 June 2021 16:00 CEST | Original file | N/A |
| article pdf uploaded. | 13 June 2021 15:58 CEST | Version of Record | https://www.mdpi.com/2304-6732/8/6/219/pdf-vor |
| article xml file uploaded | 13 June 2021 15:58 CEST | Original file | N/A |
