| article html file updated | 24 December 2025 16:02 CET | Update | https://www.mdpi.com/2221-3759/7/4/19 |
| article html file updated | 31 August 2025 02:10 CEST | Update | - |
| article html file updated | 21 August 2025 22:42 CEST | Update | - |
| article html file updated | 20 July 2022 02:32 CEST | Update | - |
| article html file updated | 13 February 2020 21:07 CET | Update | - |
| article html file updated | 31 December 2019 20:58 CET | Update | - |
| article html file updated | 28 September 2019 11:20 CEST | Original file | - |
| article pdf uploaded. | 28 September 2019 11:18 CEST | Version of Record | https://www.mdpi.com/2221-3759/7/4/19/pdf |
| article xml uploaded. | 28 September 2019 11:18 CEST | Update | https://www.mdpi.com/2221-3759/7/4/19/xml |
| article xml file uploaded | 28 September 2019 11:18 CEST | Original file | - |
