| article html file updated | 31 August 2025 13:57 CEST | Update | https://www.mdpi.com/2221-3759/8/1/7 |
| article html file updated | 20 July 2022 22:26 CEST | Update | - |
| article html file updated | 1 April 2020 20:07 CEST | Update | - |
| article html file updated | 24 March 2020 07:58 CET | Original file | - |
| article pdf uploaded. | 24 March 2020 07:57 CET | Updated version of record | https://www.mdpi.com/2221-3759/8/1/7/pdf |
| article xml uploaded. | 24 March 2020 07:57 CET | Update | https://www.mdpi.com/2221-3759/8/1/7/xml |
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| article pdf uploaded. | 9 March 2020 15:11 CET | Version of Record | https://www.mdpi.com/2221-3759/8/1/7/pdf-vor |
| article xml file uploaded | 9 March 2020 15:11 CET | Original file | - |
