| article html file updated | 30 August 2025 10:29 CEST | Update | https://www.mdpi.com/2073-4360/11/1/51 |
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| article pdf uploaded. | 2 January 2019 09:57 CET | Updated version of record | https://www.mdpi.com/2073-4360/11/1/51/pdf |
| article xml uploaded. | 2 January 2019 09:57 CET | Update | https://www.mdpi.com/2073-4360/11/1/51/xml |
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| article pdf uploaded. | 31 December 2018 16:28 CET | Updated version of record | https://www.mdpi.com/2073-4360/11/1/51/pdf-vor |
| article pdf uploaded. | 31 December 2018 16:13 CET | Version of Record | https://www.mdpi.com/2073-4360/11/1/51/pdf-vor |
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