| article html file updated | 1 September 2025 15:21 CEST | Update | https://www.mdpi.com/2075-471X/9/4/31 |
| article html file updated | 23 July 2022 04:02 CEST | Update | - |
| article html file updated | 22 December 2020 05:33 CET | Update | - |
| article pdf uploaded. | 22 December 2020 05:31 CET | Updated version of record | https://www.mdpi.com/2075-471X/9/4/31/pdf |
| article xml uploaded. | 22 December 2020 05:31 CET | Update | https://www.mdpi.com/2075-471X/9/4/31/xml |
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| article html file updated | 7 December 2020 01:47 CET | Original file | - |
| article pdf uploaded. | 6 December 2020 11:02 CET | Version of Record | https://www.mdpi.com/2075-471X/9/4/31/pdf-vor |
| article xml uploaded. | 6 December 2020 11:02 CET | Update | - |
| article xml file uploaded | 6 December 2020 11:02 CET | Original file | - |
