| article html file updated | 31 August 2025 07:19 CEST | Update | https://www.mdpi.com/2073-4441/12/1/68 |
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| article html file updated | 14 February 2020 21:12 CET | Update | - |
| article html file updated | 26 December 2019 12:45 CET | Original file | - |
| article pdf uploaded. | 26 December 2019 12:44 CET | Updated version of record | https://www.mdpi.com/2073-4441/12/1/68/pdf |
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| article xml file uploaded | 26 December 2019 12:43 CET | Update | - |
| article pdf uploaded. | 23 December 2019 15:53 CET | Version of Record | https://www.mdpi.com/2073-4441/12/1/68/pdf-vor |
| article xml file uploaded | 23 December 2019 15:53 CET | Original file | - |
