| article html file updated | 31 August 2025 07:09 CEST | Update | https://www.mdpi.com/1424-8220/20/1/68 |
| article html file updated | 19 July 2022 21:07 CEST | Update | - |
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| article html file updated | 27 December 2019 08:46 CET | Original file | - |
| article pdf uploaded. | 27 December 2019 08:44 CET | Updated version of record | https://www.mdpi.com/1424-8220/20/1/68/pdf |
| article xml uploaded. | 27 December 2019 08:44 CET | Update | https://www.mdpi.com/1424-8220/20/1/68/xml |
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| article pdf uploaded. | 21 December 2019 07:16 CET | Version of Record | https://www.mdpi.com/1424-8220/20/1/68/pdf-vor |
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