| article html file updated | 24 December 2025 15:11 CET | Update | https://www.mdpi.com/2227-7102/9/2/140 |
| article html file updated | 30 August 2025 21:17 CEST | Update | N/A |
| article html file updated | 21 August 2025 21:23 CEST | Update | N/A |
| article html file updated | 20 July 2022 15:25 CEST | Update | N/A |
| article html file updated | 12 February 2020 20:22 CET | Update | N/A |
| article html file updated | 4 July 2019 18:07 CEST | Update | N/A |
| article html file updated | 18 June 2019 08:53 CEST | Original file | N/A |
| article pdf uploaded. | 18 June 2019 08:52 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/2/140/pdf |
| article xml uploaded. | 18 June 2019 08:52 CEST | Update | https://www.mdpi.com/2227-7102/9/2/140/xml |
| article xml file uploaded | 18 June 2019 08:52 CEST | Original file | N/A |