| article html file updated | 31 August 2025 06:53 CEST | Update | https://www.mdpi.com/2223-7747/9/1/4 |
| article html file updated | 19 July 2022 21:23 CEST | Update | - |
| article html file updated | 14 February 2020 19:46 CET | Update | - |
| article html file updated | 5 February 2020 12:45 CET | Update | - |
| article html file updated | 26 December 2019 11:00 CET | Original file | - |
| article pdf uploaded. | 26 December 2019 10:59 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/1/4/pdf |
| article xml uploaded. | 26 December 2019 10:59 CET | Update | https://www.mdpi.com/2223-7747/9/1/4/xml |
| article xml file uploaded | 26 December 2019 10:59 CET | Update | - |
| article supplementary file uploaded. | 18 December 2019 14:10 CET | - | https://www.mdpi.com/2223-7747/9/1/4#supplementary |
| article pdf uploaded. | 18 December 2019 14:10 CET | Version of Record | https://www.mdpi.com/2223-7747/9/1/4/pdf-vor |
| article xml file uploaded | 18 December 2019 14:10 CET | Original file | - |
