| article html file updated | 30 August 2025 07:16 CEST | Update | https://www.mdpi.com/2076-393X/6/4/69 |
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| article pdf uploaded. | 26 September 2018 08:38 CEST | Version of Record | https://www.mdpi.com/2076-393X/6/4/69/pdf |
| article xml uploaded. | 26 September 2018 08:38 CEST | Update | https://www.mdpi.com/2076-393X/6/4/69/xml |
| article xml file uploaded | 26 September 2018 08:38 CEST | Original file | - |
