| article html file updated | 24 December 2025 19:22 CET | Update | https://www.mdpi.com/2075-1680/9/2/68 |
| article html file updated | 31 August 2025 23:56 CEST | Update | N/A |
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| article html file updated | 9 October 2020 08:26 CEST | Update | N/A |
| article html file updated | 30 June 2020 16:47 CEST | Original file | N/A |
| article pdf uploaded. | 30 June 2020 16:46 CEST | Updated version of record | https://www.mdpi.com/2075-1680/9/2/68/pdf |
| article xml uploaded. | 30 June 2020 16:46 CEST | Update | https://www.mdpi.com/2075-1680/9/2/68/xml |
| article xml file uploaded | 30 June 2020 16:46 CEST | Original file | N/A |
| article pdf uploaded. | 17 June 2020 15:25 CEST | Version of Record | https://www.mdpi.com/2075-1680/9/2/68/pdf-vor |
