| article html file updated | 31 August 2025 17:52 CEST | Update | https://www.mdpi.com/2227-9059/8/4/91 |
| article html file updated | 21 July 2022 02:20 CEST | Update | N/A |
| article html file updated | 8 May 2020 12:31 CEST | Update | N/A |
| article html file updated | 27 April 2020 04:34 CEST | Original file | N/A |
| article pdf uploaded. | 27 April 2020 04:32 CEST | Updated version of record | https://www.mdpi.com/2227-9059/8/4/91/pdf |
| article xml uploaded. | 27 April 2020 04:32 CEST | Update | https://www.mdpi.com/2227-9059/8/4/91/xml |
| article xml file uploaded | 27 April 2020 04:32 CEST | Update | N/A |
| article pdf uploaded. | 18 April 2020 13:52 CEST | Version of Record | https://www.mdpi.com/2227-9059/8/4/91/pdf-vor |
| article xml file uploaded | 18 April 2020 13:52 CEST | Original file | N/A |
