| article html file updated | 30 August 2025 01:09 CEST | Update | https://www.mdpi.com/2073-4433/8/9/168 |
| article html file updated | 16 July 2022 06:14 CEST | Update | N/A |
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| article xml uploaded. | 11 September 2017 03:02 CEST | Original file | https://www.mdpi.com/2073-4433/8/9/168/xml |
| article pdf uploaded. | 11 September 2017 03:02 CEST | Updated version of record | https://www.mdpi.com/2073-4433/8/9/168/pdf |
| article pdf uploaded. | 8 September 2017 12:54 CEST | Version of Record | https://www.mdpi.com/2073-4433/8/9/168/pdf-vor |
