| article html file updated | 31 August 2025 04:10 CEST | Update | https://www.mdpi.com/2297-8739/6/4/54 |
| article html file updated | 20 July 2022 00:10 CEST | Update | - |
| article html file updated | 14 February 2020 07:15 CET | Update | - |
| article html file updated | 31 December 2019 03:04 CET | Update | - |
| article html file updated | 24 November 2019 11:26 CET | Original file | - |
| article pdf uploaded. | 24 November 2019 11:25 CET | Updated version of record | https://www.mdpi.com/2297-8739/6/4/54/pdf |
| article xml uploaded. | 24 November 2019 11:25 CET | Update | https://www.mdpi.com/2297-8739/6/4/54/xml |
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| article pdf uploaded. | 6 November 2019 13:15 CET | Version of Record | https://www.mdpi.com/2297-8739/6/4/54/pdf-vor |
| article xml file uploaded | 6 November 2019 13:15 CET | Original file | - |
