| article html file updated | 30 August 2025 01:58 CEST | Update | https://www.mdpi.com/1996-1073/10/12/2120 |
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| article xml uploaded. | 13 December 2017 13:54 CET | Update | https://www.mdpi.com/1996-1073/10/12/2120/xml |
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| article pdf uploaded. | 13 December 2017 13:54 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/2120/pdf |
