| article html file updated | 31 August 2025 06:07 CEST | Update | https://www.mdpi.com/2227-7072/7/4/70 |
| article html file updated | 19 July 2022 22:07 CEST | Update | - |
| article html file updated | 14 February 2020 17:11 CET | Update | - |
| article html file updated | 31 December 2019 06:11 CET | Update | - |
| article html file updated | 12 December 2019 03:13 CET | Original file | - |
| article pdf uploaded. | 12 December 2019 03:11 CET | Updated version of record | https://www.mdpi.com/2227-7072/7/4/70/pdf |
| article xml uploaded. | 12 December 2019 03:11 CET | Update | https://www.mdpi.com/2227-7072/7/4/70/xml |
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| article pdf uploaded. | 9 December 2019 15:04 CET | Version of Record | https://www.mdpi.com/2227-7072/7/4/70/pdf-vor |
| article xml file uploaded | 9 December 2019 15:04 CET | Original file | - |
