| article html file updated | 31 August 2025 16:31 CEST | Update | https://www.mdpi.com/2220-9964/9/4/217 |
| article html file updated | 21 July 2022 01:00 CEST | Update | N/A |
| article html file updated | 20 April 2020 15:35 CEST | Original file | N/A |
| article pdf uploaded. | 20 April 2020 15:34 CEST | Updated version of record | https://www.mdpi.com/2220-9964/9/4/217/pdf |
| article xml uploaded. | 20 April 2020 15:34 CEST | Update | https://www.mdpi.com/2220-9964/9/4/217/xml |
| article xml file uploaded | 20 April 2020 15:34 CEST | Update | N/A |
| article pdf uploaded. | 4 April 2020 17:04 CEST | Version of Record | https://www.mdpi.com/2220-9964/9/4/217/pdf-vor |
| article xml file uploaded | 4 April 2020 17:04 CEST | Original file | N/A |
