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| article html file updated | 21 August 2025 20:46 CEST | Update | - |
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| article html file updated | 26 April 2019 06:01 CEST | Original file | - |
| article pdf uploaded. | 26 April 2019 06:00 CEST | Updated version of record | https://www.mdpi.com/2073-4344/9/4/381/pdf |
| article xml uploaded. | 26 April 2019 06:00 CEST | Update | https://www.mdpi.com/2073-4344/9/4/381/xml |
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| article pdf uploaded. | 23 April 2019 15:27 CEST | Version of Record | https://www.mdpi.com/2073-4344/9/4/381/pdf-vor |
| article xml file uploaded | 23 April 2019 15:27 CEST | Original file | - |
