| article html file updated | 30 August 2025 20:21 CEST | Update | https://www.mdpi.com/2075-1680/8/2/68 |
| article html file updated | 19 July 2022 19:13 CEST | Update | - |
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| article html file updated | 26 June 2019 08:00 CEST | Original file | - |
| article pdf uploaded. | 26 June 2019 07:59 CEST | Updated version of record | https://www.mdpi.com/2075-1680/8/2/68/pdf |
| article xml uploaded. | 26 June 2019 07:59 CEST | Update | https://www.mdpi.com/2075-1680/8/2/68/xml |
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| article pdf uploaded. | 28 May 2019 10:26 CEST | Version of Record | https://www.mdpi.com/2075-1680/8/2/68/pdf-vor |
| article xml file uploaded | 28 May 2019 10:26 CEST | Original file | - |
