| article html file updated | 31 August 2025 16:23 CEST | Update | https://www.mdpi.com/2227-7099/8/2/26 |
| article html file updated | 21 July 2022 00:53 CEST | Update | N/A |
| article html file updated | 15 April 2020 12:59 CEST | Original file | N/A |
| article pdf uploaded. | 15 April 2020 12:57 CEST | Updated version of record | https://www.mdpi.com/2227-7099/8/2/26/pdf |
| article xml uploaded. | 15 April 2020 12:57 CEST | Update | https://www.mdpi.com/2227-7099/8/2/26/xml |
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| article pdf uploaded. | 3 April 2020 13:07 CEST | Version of Record | https://www.mdpi.com/2227-7099/8/2/26/pdf-vor |
| article xml file uploaded | 3 April 2020 13:07 CEST | Original file | N/A |
