| article html file updated | 31 August 2025 07:34 CEST | Update | https://www.mdpi.com/1996-1073/13/1/139 |
| article html file updated | 19 July 2022 20:44 CEST | Update | N/A |
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| article html file updated | 2 January 2020 05:47 CET | Update | N/A |
| article pdf uploaded. | 2 January 2020 05:45 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/1/139/pdf |
| article xml uploaded. | 2 January 2020 05:45 CET | Update | https://www.mdpi.com/1996-1073/13/1/139/xml |
| article xml file uploaded | 2 January 2020 05:45 CET | Update | N/A |
| article html file updated | 27 December 2019 07:46 CET | Original file | N/A |
| article pdf uploaded. | 27 December 2019 07:45 CET | Version of Record | https://www.mdpi.com/1996-1073/13/1/139/pdf-vor |
| article xml uploaded. | 27 December 2019 07:45 CET | Update | N/A |
| article xml file uploaded | 27 December 2019 07:45 CET | Original file | N/A |