| article html file updated | 29 August 2025 22:54 CEST | Update | https://www.mdpi.com/2071-1050/8/4/304 |
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| article xml uploaded. | 30 March 2016 11:58 CEST | Update | https://www.mdpi.com/2071-1050/8/4/304/xml |
| article pdf uploaded. | 30 March 2016 11:58 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/304/pdf |
