| article html file updated | 1 September 2025 17:12 CEST | Update | https://www.mdpi.com/1999-4907/12/1/30 |
| article html file updated | 23 July 2022 07:59 CEST | Update | N/A |
| article html file updated | 31 December 2020 04:49 CET | Update | N/A |
| article pdf uploaded. | 31 December 2020 04:47 CET | Updated version of record | https://www.mdpi.com/1999-4907/12/1/30/pdf |
| article xml uploaded. | 31 December 2020 04:47 CET | Update | https://www.mdpi.com/1999-4907/12/1/30/xml |
| article xml file uploaded | 31 December 2020 04:47 CET | Update | N/A |
| article html file updated | 28 December 2020 16:24 CET | Original file | N/A |
| article pdf uploaded. | 28 December 2020 16:22 CET | Version of Record | https://www.mdpi.com/1999-4907/12/1/30/pdf-vor |
| article xml uploaded. | 28 December 2020 16:22 CET | Update | N/A |
| article xml file uploaded | 28 December 2020 16:22 CET | Original file | N/A |
