| article html file updated | 31 August 2025 03:47 CEST | Update | https://www.mdpi.com/2075-1702/7/4/68 |
| article html file updated | 20 July 2022 00:36 CEST | Update | N/A |
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| article html file updated | 31 October 2019 08:18 CET | Original file | N/A |
| article pdf uploaded. | 31 October 2019 07:03 CET | Version of Record | https://www.mdpi.com/2075-1702/7/4/68/pdf |
| article xml uploaded. | 31 October 2019 07:03 CET | Update | https://www.mdpi.com/2075-1702/7/4/68/xml |
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