| article html file updated | 31 August 2025 05:34 CEST | Update | https://www.mdpi.com/2077-0383/8/12/2121 |
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| article html file updated | 19 December 2019 02:53 CET | Original file | - |
| article pdf uploaded. | 19 December 2019 02:52 CET | Updated version of record | https://www.mdpi.com/2077-0383/8/12/2121/pdf |
| article xml uploaded. | 19 December 2019 02:52 CET | Update | https://www.mdpi.com/2077-0383/8/12/2121/xml |
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| article pdf uploaded. | 2 December 2019 16:10 CET | Version of Record | https://www.mdpi.com/2077-0383/8/12/2121/pdf-vor |
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