| article html file updated | 30 August 2025 13:53 CEST | Update | https://www.mdpi.com/1660-3397/17/4/221 |
| article html file updated | 21 August 2025 20:37 CEST | Update | N/A |
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| article pdf uploaded. | 24 April 2019 04:42 CEST | Updated version of record | https://www.mdpi.com/1660-3397/17/4/221/pdf |
| article xml uploaded. | 24 April 2019 04:42 CEST | Update | https://www.mdpi.com/1660-3397/17/4/221/xml |
| article xml file uploaded | 24 April 2019 04:42 CEST | Update | N/A |
| article html file updated | 11 April 2019 11:04 CEST | Original file | N/A |
| article pdf uploaded. | 11 April 2019 11:02 CEST | Version of Record | https://www.mdpi.com/1660-3397/17/4/221/pdf-vor |
| article xml file uploaded | 11 April 2019 11:02 CEST | Original file | N/A |
