| article html file updated | 31 August 2025 09:32 CEST | Update | https://www.mdpi.com/2227-7080/8/1/9 |
| article html file updated | 20 July 2022 18:04 CEST | Update | N/A |
| article html file updated | 14 March 2020 02:44 CET | Original file | N/A |
| article pdf uploaded. | 14 March 2020 02:42 CET | Updated version of record | https://www.mdpi.com/2227-7080/8/1/9/pdf |
| article xml uploaded. | 14 March 2020 02:42 CET | Update | https://www.mdpi.com/2227-7080/8/1/9/xml |
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| article pdf uploaded. | 21 January 2020 10:55 CET | Version of Record | https://www.mdpi.com/2227-7080/8/1/9/pdf-vor |
| article xml file uploaded | 21 January 2020 10:55 CET | Original file | N/A |
