| article html file updated | 30 August 2025 07:42 CEST | Update | https://www.mdpi.com/2504-4494/2/4/68 |
| article html file updated | 17 July 2022 04:41 CEST | Update | - |
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| article html file updated | 14 October 2018 11:14 CEST | Original file | - |
| article pdf uploaded. | 14 October 2018 11:14 CEST | Updated version of record | https://www.mdpi.com/2504-4494/2/4/68/pdf |
| article xml uploaded. | 14 October 2018 11:14 CEST | Update | https://www.mdpi.com/2504-4494/2/4/68/xml |
| article xml file uploaded | 14 October 2018 11:14 CEST | Update | - |
| article pdf uploaded. | 11 October 2018 16:22 CEST | Updated version of record | https://www.mdpi.com/2504-4494/2/4/68/pdf-vor |
| article pdf uploaded. | 11 October 2018 16:22 CEST | Version of Record | https://www.mdpi.com/2504-4494/2/4/68/pdf-vor |
| article xml file uploaded | 11 October 2018 16:22 CEST | Original file | - |
