| article html file updated | 30 August 2025 01:12 CEST | Update | https://www.mdpi.com/1422-0067/18/9/1978 |
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| article xml uploaded. | 15 September 2017 12:02 CEST | Update | https://www.mdpi.com/1422-0067/18/9/1978/xml |
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| article pdf uploaded. | 15 September 2017 12:02 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/9/1978/pdf |
