| article html file updated | 29 August 2025 23:00 CEST | Update | https://www.mdpi.com/1999-4915/8/4/111 |
| article html file updated | 20 August 2025 22:19 CEST | Update | - |
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| article xml uploaded. | 22 April 2016 17:06 CEST | Update | https://www.mdpi.com/1999-4915/8/4/111/xml |
| article pdf uploaded. | 22 April 2016 17:03 CEST | Updated version of record | https://www.mdpi.com/1999-4915/8/4/111/pdf |
