| article html file updated | 16 August 2026 01:58 CEST | Update | https://www.mdpi.com/2218-1989/9/6/108 |
| article html file updated | 30 August 2025 20:50 CEST | Update | N/A |
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| article html file updated | 6 June 2019 14:37 CEST | Original file | N/A |
| article pdf uploaded. | 6 June 2019 14:36 CEST | Version of Record | https://www.mdpi.com/2218-1989/9/6/108/pdf |
| article xml uploaded. | 6 June 2019 14:36 CEST | Update | https://www.mdpi.com/2218-1989/9/6/108/xml |
| article xml file uploaded | 6 June 2019 14:36 CEST | Original file | N/A |
