| article html file updated | 30 August 2025 20:29 CEST | Update | https://www.mdpi.com/2223-7747/8/6/144 |
| article html file updated | 19 July 2022 19:22 CEST | Update | N/A |
| article html file updated | 12 February 2020 16:24 CET | Update | N/A |
| article html file updated | 21 October 2019 00:38 CEST | Update | N/A |
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| article html file updated | 3 June 2019 12:18 CEST | Update | N/A |
| article pdf uploaded. | 3 June 2019 12:17 CEST | Updated version of record | https://www.mdpi.com/2223-7747/8/6/144/pdf |
| article xml uploaded. | 3 June 2019 12:17 CEST | Update | https://www.mdpi.com/2223-7747/8/6/144/xml |
| article xml file uploaded | 3 June 2019 12:16 CEST | Update | N/A |
| article html file updated | 30 May 2019 11:49 CEST | Original file | N/A |
| article pdf uploaded. | 30 May 2019 11:46 CEST | Version of Record | https://www.mdpi.com/2223-7747/8/6/144/pdf-vor |
| article xml file uploaded | 30 May 2019 11:46 CEST | Original file | N/A |
