| article html file updated | 31 August 2025 01:47 CEST | Update | https://www.mdpi.com/2227-7080/7/4/68 |
| article html file updated | 21 August 2025 22:36 CEST | Update | N/A |
| article html file updated | 20 July 2022 03:00 CEST | Update | N/A |
| article html file updated | 13 February 2020 19:16 CET | Update | N/A |
| article html file updated | 24 September 2019 14:02 CEST | Original file | N/A |
| article pdf uploaded. | 24 September 2019 14:01 CEST | Updated version of record | https://www.mdpi.com/2227-7080/7/4/68/pdf |
| article xml uploaded. | 24 September 2019 14:01 CEST | Update | https://www.mdpi.com/2227-7080/7/4/68/xml |
| article xml file uploaded | 24 September 2019 14:01 CEST | Update | N/A |
| article pdf uploaded. | 20 September 2019 16:47 CEST | Version of Record | https://www.mdpi.com/2227-7080/7/4/68/pdf-vor |
| article xml file uploaded | 20 September 2019 16:47 CEST | Original file | N/A |
