| article html file updated | 31 August 2025 05:39 CEST | Update | https://www.mdpi.com/2218-273X/9/12/821 |
| article html file updated | 19 July 2022 22:35 CEST | Update | N/A |
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| article html file updated | 31 December 2019 12:27 CET | Update | N/A |
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| article pdf uploaded. | 19 December 2019 07:15 CET | Updated version of record | https://www.mdpi.com/2218-273X/9/12/821/pdf |
| article xml uploaded. | 19 December 2019 07:15 CET | Update | https://www.mdpi.com/2218-273X/9/12/821/xml |
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| article pdf uploaded. | 3 December 2019 15:48 CET | Version of Record | https://www.mdpi.com/2218-273X/9/12/821/pdf-vor |
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