| article html file updated | 31 August 2025 07:34 CEST | Update | https://www.mdpi.com/2227-7390/8/1/33 |
| article html file updated | 19 July 2022 20:44 CEST | Update | - |
| article html file updated | 14 February 2020 21:59 CET | Update | - |
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| article pdf uploaded. | 8 January 2020 07:13 CET | Updated version of record | https://www.mdpi.com/2227-7390/8/1/33/pdf |
| article xml uploaded. | 8 January 2020 07:13 CET | Update | https://www.mdpi.com/2227-7390/8/1/33/xml |
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| article pdf uploaded. | 26 December 2019 17:01 CET | Version of Record | https://www.mdpi.com/2227-7390/8/1/33/pdf-vor |
| article xml file uploaded | 26 December 2019 17:01 CET | Original file | - |
