| article html file updated | 29 August 2025 22:39 CEST | Update | https://www.mdpi.com/2072-6643/8/2/68 |
| article html file updated | 16 July 2022 01:41 CEST | Update | N/A |
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| article pdf uploaded. | 28 January 2016 09:04 CET | Version of Record | https://www.mdpi.com/2072-6643/8/2/68/pdf |
| article xml uploaded. | 28 January 2016 09:04 CET | Original file | https://www.mdpi.com/2072-6643/8/2/68/xml |
