| article html file updated | 1 September 2025 07:46 CEST | Update | https://www.mdpi.com/1999-4915/12/9/990 |
| article html file updated | 22 July 2022 06:09 CEST | Update | - |
| article html file updated | 8 September 2020 17:07 CEST | Update | - |
| article pdf uploaded. | 8 September 2020 17:06 CEST | Updated version of record | https://www.mdpi.com/1999-4915/12/9/990/pdf |
| article xml uploaded. | 8 September 2020 17:06 CEST | Update | https://www.mdpi.com/1999-4915/12/9/990/xml |
| article xml file uploaded | 8 September 2020 17:06 CEST | Update | - |
| article html file updated | 6 September 2020 08:14 CEST | Original file | - |
| article supplementary file uploaded. | 6 September 2020 08:13 CEST | - | https://www.mdpi.com/1999-4915/12/9/990#supplementary |
| article pdf uploaded. | 6 September 2020 08:13 CEST | Version of Record | https://www.mdpi.com/1999-4915/12/9/990/pdf-vor |
| article xml uploaded. | 6 September 2020 08:13 CEST | Update | - |
| article xml file uploaded | 6 September 2020 08:13 CEST | Original file | - |