| article html file updated | 30 August 2025 10:48 CEST | Update | https://www.mdpi.com/2227-7080/7/1/9 |
| article html file updated | 17 July 2022 22:03 CEST | Update | - |
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| article html file updated | 12 January 2019 02:06 CET | Original file | - |
| article pdf uploaded. | 11 January 2019 14:04 CET | Updated version of record | https://www.mdpi.com/2227-7080/7/1/9/pdf |
| article xml uploaded. | 11 January 2019 14:04 CET | Update | https://www.mdpi.com/2227-7080/7/1/9/xml |
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| article pdf uploaded. | 9 January 2019 18:01 CET | Updated version of record | https://www.mdpi.com/2227-7080/7/1/9/pdf-vor |
| article pdf uploaded. | 9 January 2019 17:52 CET | Version of Record | https://www.mdpi.com/2227-7080/7/1/9/pdf-vor |
| article xml file uploaded | 9 January 2019 17:52 CET | Original file | - |
