| article html file updated | 31 August 2025 11:07 CEST | Update | https://www.mdpi.com/2227-9059/8/2/28 |
| article html file updated | 21 August 2025 23:39 CEST | Update | - |
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| article html file updated | 6 March 2020 07:57 CET | Update | - |
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| article pdf uploaded. | 1 March 2020 15:09 CET | Updated version of record | https://www.mdpi.com/2227-9059/8/2/28/pdf |
| article xml uploaded. | 1 March 2020 15:09 CET | Update | https://www.mdpi.com/2227-9059/8/2/28/xml |
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| article pdf uploaded. | 8 February 2020 12:07 CET | Version of Record | https://www.mdpi.com/2227-9059/8/2/28/pdf-vor |
| article xml file uploaded | 8 February 2020 12:07 CET | Original file | - |
