| article html file updated | 30 August 2025 10:22 CEST | Update | https://www.mdpi.com/2073-431X/8/1/2 |
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| article pdf uploaded. | 12 January 2019 01:47 CET | Updated version of record | https://www.mdpi.com/2073-431X/8/1/2/pdf |
| article xml uploaded. | 12 January 2019 01:47 CET | Update | https://www.mdpi.com/2073-431X/8/1/2/xml |
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| article html file updated | 26 December 2018 22:42 CET | Original file | - |
| article pdf uploaded. | 26 December 2018 13:13 CET | Version of Record | https://www.mdpi.com/2073-431X/8/1/2/pdf-vor |
| article xml uploaded. | 26 December 2018 13:13 CET | Update | - |
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