| article html file updated | 30 August 2025 04:28 CEST | Update | https://www.mdpi.com/1996-1944/11/6/991 |
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| article pdf uploaded. | 11 June 2018 16:10 CEST | Version of Record | https://www.mdpi.com/1996-1944/11/6/991/pdf |
| article xml uploaded. | 11 June 2018 16:10 CEST | Update | https://www.mdpi.com/1996-1944/11/6/991/xml |
| article xml file uploaded | 11 June 2018 16:10 CEST | Original file | - |
