| article html file updated | 30 August 2025 11:14 CEST | Update | https://www.mdpi.com/2227-9067/6/1/13 |
| article html file updated | 18 July 2022 00:15 CEST | Update | - |
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| article html file updated | 22 January 2019 09:42 CET | Original file | - |
| article pdf uploaded. | 22 January 2019 09:40 CET | Updated version of record | https://www.mdpi.com/2227-9067/6/1/13/pdf |
| article xml uploaded. | 22 January 2019 09:40 CET | Update | https://www.mdpi.com/2227-9067/6/1/13/xml |
| article xml file uploaded | 22 January 2019 09:39 CET | Update | - |
| article pdf uploaded. | 18 January 2019 16:32 CET | Updated version of record | https://www.mdpi.com/2227-9067/6/1/13/pdf-vor |
| article pdf uploaded. | 18 January 2019 16:28 CET | Version of Record | https://www.mdpi.com/2227-9067/6/1/13/pdf-vor |
| article xml file uploaded | 18 January 2019 16:28 CET | Original file | - |
