| article html file updated | 18 August 2026 13:04 CEST | Update | https://www.mdpi.com/2226-471X/5/4/69 |
| article html file updated | 1 September 2025 15:46 CEST | Update | N/A |
| article html file updated | 23 July 2022 04:43 CEST | Update | N/A |
| article html file updated | 11 December 2020 11:18 CET | Original file | N/A |
| article pdf uploaded. | 11 December 2020 11:16 CET | Version of Record | https://www.mdpi.com/2226-471X/5/4/69/pdf |
| article xml uploaded. | 11 December 2020 11:16 CET | Update | https://www.mdpi.com/2226-471X/5/4/69/xml |
| article xml file uploaded | 11 December 2020 11:16 CET | Original file | N/A |
