| article html file updated | 31 August 2025 06:01 CEST | Update | https://www.mdpi.com/2075-4418/9/4/215 |
| article html file updated | 19 July 2022 22:13 CEST | Update | N/A |
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| article html file updated | 30 December 2019 11:16 CET | Update | N/A |
| article html file updated | 19 December 2019 07:09 CET | Original file | N/A |
| article pdf uploaded. | 19 December 2019 07:07 CET | Updated version of record | https://www.mdpi.com/2075-4418/9/4/215/pdf |
| article xml uploaded. | 19 December 2019 07:07 CET | Update | https://www.mdpi.com/2075-4418/9/4/215/xml |
| article xml file uploaded | 19 December 2019 07:07 CET | Update | N/A |
| article pdf uploaded. | 7 December 2019 13:17 CET | Version of Record | https://www.mdpi.com/2075-4418/9/4/215/pdf-vor |
| article xml file uploaded | 7 December 2019 13:17 CET | Original file | N/A |
