| article html file updated | 29 August 2025 22:34 CEST | Update | https://www.mdpi.com/1420-3049/21/1/63 |
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| article pdf uploaded. | 7 January 2016 15:35 CET | Version of Record | https://www.mdpi.com/1420-3049/21/1/63/pdf |
| article xml uploaded. | 7 January 2016 15:35 CET | Original file | https://www.mdpi.com/1420-3049/21/1/63/xml |
