| article html file updated | 31 August 2025 06:35 CEST | Update | https://www.mdpi.com/2218-1989/9/12/303 |
| article html file updated | 19 July 2022 21:40 CEST | Update | - |
| article html file updated | 14 February 2020 18:47 CET | Update | - |
| article html file updated | 31 December 2019 22:53 CET | Update | - |
| article html file updated | 14 December 2019 09:20 CET | Original file | - |
| article pdf uploaded. | 14 December 2019 09:18 CET | Version of Record | https://www.mdpi.com/2218-1989/9/12/303/pdf |
| article xml uploaded. | 14 December 2019 09:18 CET | Update | https://www.mdpi.com/2218-1989/9/12/303/xml |
| article xml file uploaded | 14 December 2019 09:18 CET | Original file | - |
