| article html file updated | 31 August 2025 23:34 CEST | Update | https://www.mdpi.com/2076-3921/9/6/521 |
| article html file updated | 21 July 2022 20:49 CEST | Update | N/A |
| article html file updated | 19 June 2020 04:46 CEST | Update | N/A |
| article pdf uploaded. | 19 June 2020 04:45 CEST | Updated version of record | https://www.mdpi.com/2076-3921/9/6/521/pdf |
| article xml uploaded. | 19 June 2020 04:45 CEST | Update | https://www.mdpi.com/2076-3921/9/6/521/xml |
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| article html file updated | 13 June 2020 13:52 CEST | Original file | N/A |
| article pdf uploaded. | 13 June 2020 13:51 CEST | Version of Record | https://www.mdpi.com/2076-3921/9/6/521/pdf-vor |
| article xml file uploaded | 13 June 2020 13:51 CEST | Original file | N/A |
