| article html file updated | 31 August 2025 05:28 CEST | Update | https://www.mdpi.com/2227-7102/9/4/286 |
| article html file updated | 19 July 2022 22:46 CEST | Update | N/A |
| article html file updated | 14 February 2020 14:48 CET | Update | N/A |
| article html file updated | 19 December 2019 03:16 CET | Original file | N/A |
| article pdf uploaded. | 19 December 2019 03:14 CET | Updated version of record | https://www.mdpi.com/2227-7102/9/4/286/pdf |
| article xml uploaded. | 19 December 2019 03:14 CET | Update | https://www.mdpi.com/2227-7102/9/4/286/xml |
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| article pdf uploaded. | 1 December 2019 09:32 CET | Version of Record | https://www.mdpi.com/2227-7102/9/4/286/pdf-vor |
| article xml file uploaded | 1 December 2019 09:32 CET | Original file | N/A |
