| article html file updated | 1 September 2025 11:19 CEST | Update | https://www.mdpi.com/2218-6581/9/4/87 |
| article html file updated | 22 July 2022 21:41 CEST | Update | N/A |
| article html file updated | 5 November 2020 05:13 CET | Original file | N/A |
| article pdf uploaded. | 5 November 2020 05:11 CET | Updated version of record | https://www.mdpi.com/2218-6581/9/4/87/pdf |
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| article pdf uploaded. | 19 October 2020 15:56 CEST | Version of Record | https://www.mdpi.com/2218-6581/9/4/87/pdf-vor |
