| article html file updated | 21 August 2026 12:04 CEST | Update | https://www.mdpi.com/2218-1997/8/2/87 |
| article html file updated | 26 December 2025 19:24 CET | Update | N/A |
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| article pdf uploaded. | 11 February 2022 05:03 CET | Updated version of record | https://www.mdpi.com/2218-1997/8/2/87/pdf |
| article xml uploaded. | 11 February 2022 05:03 CET | Update | https://www.mdpi.com/2218-1997/8/2/87/xml |
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| article pdf uploaded. | 29 January 2022 08:57 CET | Version of Record | https://www.mdpi.com/2218-1997/8/2/87/pdf-vor |
