| article html file updated | 30 August 2025 13:38 CEST | Update | https://www.mdpi.com/2073-4409/8/4/306 |
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| article xml uploaded. | 12 April 2019 08:57 CEST | Update | https://www.mdpi.com/2073-4409/8/4/306/xml |
| article pdf uploaded. | 12 April 2019 08:57 CEST | Updated version of record | https://www.mdpi.com/2073-4409/8/4/306/pdf |
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| article supplementary file uploaded. | 3 April 2019 13:21 CEST | - | https://www.mdpi.com/2073-4409/8/4/306#supplementary |
| article pdf uploaded. | 3 April 2019 13:21 CEST | Version of Record | https://www.mdpi.com/2073-4409/8/4/306/pdf-vor |
| article xml file uploaded | 3 April 2019 13:21 CEST | Original file | - |
