| article html file updated | 31 August 2025 14:05 CEST | Update | https://www.mdpi.com/2226-4787/8/1/39 |
| article html file updated | 20 July 2022 22:34 CEST | Update | - |
| article html file updated | 2 April 2020 12:22 CEST | Update | - |
| article html file updated | 16 March 2020 09:46 CET | Original file | - |
| article pdf uploaded. | 16 March 2020 09:45 CET | Updated version of record | https://www.mdpi.com/2226-4787/8/1/39/pdf |
| article xml uploaded. | 16 March 2020 09:45 CET | Update | https://www.mdpi.com/2226-4787/8/1/39/xml |
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| article pdf uploaded. | 13 March 2020 13:06 CET | Updated version of record | https://www.mdpi.com/2226-4787/8/1/39/pdf-vor |
| article pdf uploaded. | 11 March 2020 10:31 CET | Version of Record | https://www.mdpi.com/2226-4787/8/1/39/pdf-vor |
| article xml file uploaded | 11 March 2020 10:31 CET | Original file | - |
