| article html file updated | 31 August 2025 16:01 CEST | Update | https://www.mdpi.com/2227-7382/8/2/6 |
| article html file updated | 21 July 2022 00:30 CEST | Update | N/A |
| article html file updated | 6 July 2020 15:07 CEST | Update | N/A |
| article html file updated | 20 April 2020 10:16 CEST | Original file | N/A |
| article pdf uploaded. | 20 April 2020 10:15 CEST | Updated version of record | https://www.mdpi.com/2227-7382/8/2/6/pdf |
| article xml uploaded. | 20 April 2020 10:15 CEST | Update | https://www.mdpi.com/2227-7382/8/2/6/xml |
| article xml file uploaded | 20 April 2020 10:14 CEST | Update | N/A |
| article supplementary file uploaded. | 31 March 2020 14:29 CEST | - | https://www.mdpi.com/2227-7382/8/2/6#supplementary |
| article pdf uploaded. | 31 March 2020 14:29 CEST | Version of Record | https://www.mdpi.com/2227-7382/8/2/6/pdf-vor |
| article xml file uploaded | 31 March 2020 14:29 CEST | Original file | N/A |
