| article html file updated | 31 August 2025 23:49 CEST | Update | https://www.mdpi.com/2227-7390/8/6/987 |
| article html file updated | 21 July 2022 21:04 CEST | Update | - |
| article html file updated | 9 October 2020 08:11 CEST | Update | - |
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| article xml uploaded. | 30 June 2020 07:00 CEST | Update | https://www.mdpi.com/2227-7390/8/6/987/xml |
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| article pdf uploaded. | 16 June 2020 16:05 CEST | Version of Record | https://www.mdpi.com/2227-7390/8/6/987/pdf-vor |
