| article html file updated | 30 August 2025 21:10 CEST | Update | https://www.mdpi.com/2227-7102/9/2/133 |
| article html file updated | 20 July 2022 15:34 CEST | Update | N/A |
| article html file updated | 12 February 2020 19:49 CET | Update | N/A |
| article html file updated | 21 October 2019 22:12 CEST | Update | N/A |
| article html file updated | 4 July 2019 18:06 CEST | Update | N/A |
| article html file updated | 26 June 2019 04:38 CEST | Original file | N/A |
| article pdf uploaded. | 26 June 2019 04:37 CEST | Updated version of record | https://www.mdpi.com/2227-7102/9/2/133/pdf |
| article xml uploaded. | 26 June 2019 04:37 CEST | Update | https://www.mdpi.com/2227-7102/9/2/133/xml |
| article xml file uploaded | 26 June 2019 04:37 CEST | Update | N/A |
| article pdf uploaded. | 14 June 2019 15:43 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/2/133/pdf-vor |
| article xml file uploaded | 14 June 2019 15:43 CEST | Original file | N/A |
