| article html file updated | 29 August 2025 23:14 CEST | Update | https://www.mdpi.com/1996-1944/9/6/476 |
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| article xml uploaded. | 15 June 2016 13:13 CEST | Update | https://www.mdpi.com/1996-1944/9/6/476/xml |
| article pdf uploaded. | 15 June 2016 13:13 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/6/476/pdf |