| article html file updated | 30 August 2025 21:17 CEST | Update | https://www.mdpi.com/2227-7102/9/2/144 |
| article html file updated | 20 July 2022 15:25 CEST | Update | - |
| article html file updated | 12 February 2020 20:22 CET | Update | - |
| article html file updated | 4 July 2019 18:08 CEST | Update | - |
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| article pdf uploaded. | 18 June 2019 09:01 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/2/144/pdf |
| article xml uploaded. | 18 June 2019 09:01 CEST | Update | https://www.mdpi.com/2227-7102/9/2/144/xml |
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