| article html file updated | 1 September 2025 15:54 CEST | Update | https://www.mdpi.com/2221-3759/8/4/34 |
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| article pdf uploaded. | 15 December 2020 18:10 CET | Updated version of record | https://www.mdpi.com/2221-3759/8/4/34/pdf |
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| article supplementary file uploaded. | 13 December 2020 11:45 CET | - | https://www.mdpi.com/2221-3759/8/4/34#supplementary |
| article pdf uploaded. | 13 December 2020 11:45 CET | Version of Record | https://www.mdpi.com/2221-3759/8/4/34/pdf-vor |
