| article html file updated | 31 August 2025 16:40 CEST | Update | https://www.mdpi.com/2227-7390/8/4/542 |
| article html file updated | 21 July 2022 01:09 CEST | Update | - |
| article html file updated | 20 April 2020 04:42 CEST | Original file | - |
| article pdf uploaded. | 20 April 2020 04:41 CEST | Updated version of record | https://www.mdpi.com/2227-7390/8/4/542/pdf |
| article xml uploaded. | 20 April 2020 04:41 CEST | Update | https://www.mdpi.com/2227-7390/8/4/542/xml |
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| article pdf uploaded. | 7 April 2020 11:35 CEST | Version of Record | https://www.mdpi.com/2227-7390/8/4/542/pdf-vor |
| article xml file uploaded | 7 April 2020 11:35 CEST | Original file | - |
