| article html file updated | 30 August 2025 20:47 CEST | Update | https://www.mdpi.com/2218-273X/9/6/218 |
| article html file updated | 19 July 2022 19:43 CEST | Update | - |
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| article html file updated | 24 June 2019 13:07 CEST | Original file | - |
| article pdf uploaded. | 24 June 2019 13:06 CEST | Updated version of record | https://www.mdpi.com/2218-273X/9/6/218/pdf |
| article xml uploaded. | 24 June 2019 13:06 CEST | Update | https://www.mdpi.com/2218-273X/9/6/218/xml |
| article xml file uploaded | 24 June 2019 13:06 CEST | Update | - |
| article pdf uploaded. | 5 June 2019 16:19 CEST | Version of Record | https://www.mdpi.com/2218-273X/9/6/218/pdf-vor |
| article xml file uploaded | 5 June 2019 16:19 CEST | Original file | - |
