| article html file updated | 1 September 2025 00:30 CEST | Update | https://www.mdpi.com/2076-0817/9/6/504 |
| article html file updated | 21 July 2022 21:48 CEST | Update | - |
| article html file updated | 28 June 2020 11:57 CEST | Original file | - |
| article pdf uploaded. | 28 June 2020 11:55 CEST | Updated version of record | https://www.mdpi.com/2076-0817/9/6/504/pdf |
| article xml uploaded. | 28 June 2020 11:55 CEST | Update | https://www.mdpi.com/2076-0817/9/6/504/xml |
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| article pdf uploaded. | 23 June 2020 13:43 CEST | Version of Record | https://www.mdpi.com/2076-0817/9/6/504/pdf-vor |
