| article html file updated | 16 August 2026 02:30 CEST | Update | https://www.mdpi.com/2218-1997/5/6/152 |
| article html file updated | 30 August 2025 21:08 CEST | Update | N/A |
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| article html file updated | 14 June 2019 10:35 CEST | Original file | N/A |
| article pdf uploaded. | 14 June 2019 10:34 CEST | Version of Record | https://www.mdpi.com/2218-1997/5/6/152/pdf |
| article xml uploaded. | 14 June 2019 10:34 CEST | Update | https://www.mdpi.com/2218-1997/5/6/152/xml |
| article xml file uploaded | 14 June 2019 10:34 CEST | Original file | N/A |
