| article html file updated | 30 August 2025 02:41 CEST | Update | https://www.mdpi.com/1996-1073/11/2/457 |
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| article xml uploaded. | 22 February 2018 15:59 CET | Update | https://www.mdpi.com/1996-1073/11/2/457/xml |
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| article pdf uploaded. | 22 February 2018 15:57 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/457/pdf |
