| article html file updated | 30 August 2025 08:14 CEST | Update | https://www.mdpi.com/2079-9721/6/4/97 |
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| article pdf uploaded. | 27 October 2018 11:24 CEST | Version of Record | https://www.mdpi.com/2079-9721/6/4/97/pdf |
| article xml uploaded. | 27 October 2018 11:24 CEST | Update | https://www.mdpi.com/2079-9721/6/4/97/xml |
| article xml file uploaded | 27 October 2018 11:24 CEST | Original file | N/A |
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