| article html file updated | 30 August 2025 01:48 CEST | Update | https://www.mdpi.com/1996-1073/10/12/1973 |
| article html file updated | 16 July 2022 07:37 CEST | Update | - |
| article html file updated | 8 February 2020 22:20 CET | Update | - |
| article html file updated | 28 September 2019 18:50 CEST | Update | - |
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| article html file updated | 2 January 2018 18:40 CET | Update | - |
| article html file updated | 28 November 2017 13:57 CET | Original file | - |
| article xml uploaded. | 28 November 2017 13:56 CET | Original file | https://www.mdpi.com/1996-1073/10/12/1973/xml |
| article pdf uploaded. | 28 November 2017 13:56 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/12/1973/pdf |
| article pdf uploaded. | 27 November 2017 12:29 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/1973/pdf-vor |
