| article html file updated | 29 August 2025 22:35 CEST | Update | https://www.mdpi.com/1999-4915/8/1/18 |
| article html file updated | 20 August 2025 22:10 CEST | Update | N/A |
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| article html file updated | 26 March 2019 18:13 CET | Original file | N/A |
| article pdf uploaded. | 12 January 2016 13:08 CET | Version of Record | https://www.mdpi.com/1999-4915/8/1/18/pdf |
| article xml uploaded. | 12 January 2016 13:08 CET | Original file | https://www.mdpi.com/1999-4915/8/1/18/xml |
