| article html file updated | 31 August 2025 06:49 CEST | Update | https://www.mdpi.com/2227-7080/8/1/1 |
| article html file updated | 19 July 2022 21:27 CEST | Update | N/A |
| article html file updated | 14 February 2020 19:33 CET | Update | N/A |
| article html file updated | 25 December 2019 07:15 CET | Original file | N/A |
| article pdf uploaded. | 25 December 2019 07:14 CET | Updated version of record | https://www.mdpi.com/2227-7080/8/1/1/pdf |
| article xml uploaded. | 25 December 2019 07:14 CET | Update | https://www.mdpi.com/2227-7080/8/1/1/xml |
| article xml file uploaded | 25 December 2019 07:14 CET | Update | N/A |
| article pdf uploaded. | 18 December 2019 05:40 CET | Updated version of record | https://www.mdpi.com/2227-7080/8/1/1/pdf-vor |
| article xml file uploaded | 18 December 2019 05:40 CET | Update | N/A |
| article pdf uploaded. | 18 December 2019 04:53 CET | Version of Record | https://www.mdpi.com/2227-7080/8/1/1/pdf-vor |
| article xml file uploaded | 18 December 2019 04:53 CET | Original file | N/A |
