| article html file updated | 30 August 2025 00:41 CEST | Update | https://www.mdpi.com/1999-4915/9/4/80 |
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| article xml uploaded. | 14 April 2017 14:40 CEST | Original file | https://www.mdpi.com/1999-4915/9/4/80/xml |
| article pdf uploaded. | 14 April 2017 14:40 CEST | Updated version of record | https://www.mdpi.com/1999-4915/9/4/80/pdf |
| article pdf uploaded. | 13 April 2017 11:30 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/4/80/pdf-vor |
