| article html file updated | 31 August 2025 10:29 CEST | Update | https://www.mdpi.com/2076-3921/9/2/121 |
| article html file updated | 20 July 2022 19:00 CEST | Update | - |
| article html file updated | 6 March 2020 05:52 CET | Update | - |
| article html file updated | 1 March 2020 13:30 CET | Original file | - |
| article pdf uploaded. | 1 March 2020 13:28 CET | Updated version of record | https://www.mdpi.com/2076-3921/9/2/121/pdf |
| article xml uploaded. | 1 March 2020 13:28 CET | Update | https://www.mdpi.com/2076-3921/9/2/121/xml |
| article xml file uploaded | 1 March 2020 13:28 CET | Update | - |
| article pdf uploaded. | 1 February 2020 15:45 CET | Version of Record | https://www.mdpi.com/2076-3921/9/2/121/pdf-vor |
| article xml file uploaded | 1 February 2020 15:45 CET | Original file | - |
