| article html file updated | 31 August 2025 07:59 CEST | Update | https://www.mdpi.com/2311-553X/6/1/2 |
| article html file updated | 19 July 2022 20:20 CEST | Update | N/A |
| article html file updated | 1 April 2020 20:07 CEST | Update | N/A |
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| article pdf uploaded. | 1 January 2020 10:14 CET | Version of Record | https://www.mdpi.com/2311-553X/6/1/2/pdf |
| article xml uploaded. | 1 January 2020 10:14 CET | Update | https://www.mdpi.com/2311-553X/6/1/2/xml |
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