| article html file updated | 30 August 2025 00:27 CEST | Update | https://www.mdpi.com/2071-1050/9/2/309 |
| article html file updated | 16 July 2022 04:57 CEST | Update | N/A |
| article html file updated | 7 February 2020 23:52 CET | Update | N/A |
| article html file updated | 23 September 2019 10:36 CEST | Update | N/A |
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| article xml uploaded. | 21 February 2017 08:30 CET | Update | https://www.mdpi.com/2071-1050/9/2/309/xml |
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| article pdf uploaded. | 21 February 2017 08:30 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/309/pdf |
