| article html file updated | 13 February 2020 15:27 CET | Update | https://www.mdpi.com/2076-2607/7/9/321 |
| article html file updated | 26 September 2019 22:00 CEST | Update | N/A |
| article html file updated | 10 September 2019 11:45 CEST | Original file | N/A |
| article pdf uploaded. | 10 September 2019 11:44 CEST | Updated version of record | https://www.mdpi.com/2076-2607/7/9/321/pdf |
| article xml uploaded. | 10 September 2019 11:44 CEST | Update | https://www.mdpi.com/2076-2607/7/9/321/xml |
| article xml file uploaded | 10 September 2019 11:44 CEST | Update | N/A |
| article pdf uploaded. | 5 September 2019 14:44 CEST | Version of Record | https://www.mdpi.com/2076-2607/7/9/321/pdf-vor |
| article xml file uploaded | 5 September 2019 14:44 CEST | Original file | N/A |
