| article html file updated | 31 August 2025 10:13 CEST | Update | https://www.mdpi.com/2223-7747/9/2/164 |
| article html file updated | 20 July 2022 18:44 CEST | Update | - |
| article html file updated | 6 March 2020 08:31 CET | Update | - |
| article pdf uploaded. | 5 March 2020 10:14 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/164/pdf |
| article html file updated | 15 February 2020 06:26 CET | Update | - |
| article html file updated | 29 January 2020 15:17 CET | Original file | - |
| article pdf uploaded. | 29 January 2020 15:16 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/164/pdf-vor |
| article xml uploaded. | 29 January 2020 15:16 CET | Update | https://www.mdpi.com/2223-7747/9/2/164/xml |
| article xml file uploaded | 29 January 2020 15:16 CET | Original file | - |
