| article html file updated | 25 December 2025 07:24 CET | Update | https://www.mdpi.com/2218-1997/7/4/87 |
| article html file updated | 2 September 2025 02:27 CEST | Update | N/A |
| article html file updated | 25 July 2022 10:20 CEST | Update | N/A |
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| article html file updated | 1 April 2021 16:49 CEST | Original file | N/A |
| article pdf uploaded. | 1 April 2021 16:48 CEST | Updated version of record | https://www.mdpi.com/2218-1997/7/4/87/pdf |
| article xml uploaded. | 1 April 2021 16:48 CEST | Update | https://www.mdpi.com/2218-1997/7/4/87/xml |
| article xml file uploaded | 1 April 2021 16:48 CEST | Original file | N/A |
