| article html file updated | 17 August 2026 02:58 CEST | Update | https://www.mdpi.com/1999-4907/11/2/221 |
| article html file updated | 31 August 2025 11:43 CEST | Update | N/A |
| article html file updated | 20 July 2022 20:14 CEST | Update | N/A |
| article html file updated | 7 March 2020 09:41 CET | Update | N/A |
| article html file updated | 7 March 2020 05:01 CET | Update | N/A |
| article html file updated | 17 February 2020 13:31 CET | Original file | N/A |
| article pdf uploaded. | 17 February 2020 13:30 CET | Updated version of record | https://www.mdpi.com/1999-4907/11/2/221/pdf |
| article xml uploaded. | 17 February 2020 13:30 CET | Update | https://www.mdpi.com/1999-4907/11/2/221/xml |
| article xml file uploaded | 17 February 2020 13:30 CET | Update | N/A |
| article pdf uploaded. | 14 February 2020 15:25 CET | Version of Record | https://www.mdpi.com/1999-4907/11/2/221/pdf-vor |
| article xml file uploaded | 14 February 2020 15:25 CET | Original file | N/A |
