| article html file updated | 30 August 2025 00:15 CEST | Update | https://www.mdpi.com/2071-1050/9/1/134 |
| article html file updated | 16 July 2022 04:33 CEST | Update | N/A |
| article html file updated | 7 February 2020 21:41 CET | Update | N/A |
| article html file updated | 22 September 2019 22:38 CEST | Update | N/A |
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| article html file updated | 18 January 2017 09:37 CET | Original file | N/A |
| article xml uploaded. | 18 January 2017 09:36 CET | Update | https://www.mdpi.com/2071-1050/9/1/134/xml |
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| article pdf uploaded. | 18 January 2017 09:36 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/134/pdf |
