| article html file updated | 1 September 2025 21:31 CEST | Update | https://www.mdpi.com/2227-9067/8/2/136 |
| article html file updated | 25 July 2022 02:30 CEST | Update | N/A |
| article html file updated | 26 February 2021 06:40 CET | Update | N/A |
| article pdf uploaded. | 26 February 2021 06:39 CET | Updated version of record | https://www.mdpi.com/2227-9067/8/2/136/pdf |
| article xml uploaded. | 26 February 2021 06:39 CET | Update | https://www.mdpi.com/2227-9067/8/2/136/xml |
| article xml file uploaded | 26 February 2021 06:39 CET | Update | N/A |
| article html file updated | 23 February 2021 10:28 CET | Original file | N/A |
| article pdf uploaded. | 23 February 2021 10:23 CET | Updated version of record | https://www.mdpi.com/2227-9067/8/2/136/pdf-vor |
| article xml uploaded. | 23 February 2021 10:23 CET | Update | N/A |
| article xml file uploaded | 23 February 2021 10:23 CET | Original file | N/A |
| article pdf uploaded. | 12 February 2021 13:01 CET | Version of Record | https://www.mdpi.com/2227-9067/8/2/136/pdf-vor |
