| article html file updated | 31 August 2025 06:38 CEST | Update | https://www.mdpi.com/2227-7102/9/4/300 |
| article html file updated | 19 July 2022 21:37 CEST | Update | - |
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| article html file updated | 16 December 2019 13:29 CET | Update | - |
| article pdf uploaded. | 16 December 2019 13:28 CET | Updated version of record | https://www.mdpi.com/2227-7102/9/4/300/pdf |
| article xml uploaded. | 16 December 2019 13:27 CET | Update | https://www.mdpi.com/2227-7102/9/4/300/xml |
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| article html file updated | 15 December 2019 11:56 CET | Original file | - |
| article pdf uploaded. | 15 December 2019 11:55 CET | Version of Record | https://www.mdpi.com/2227-7102/9/4/300/pdf-vor |
| article xml uploaded. | 15 December 2019 11:55 CET | Update | - |
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