| article html file updated | 24 December 2025 19:25 CET | Update | https://www.mdpi.com/2199-8531/6/2/44 |
| article html file updated | 1 September 2025 00:12 CEST | Update | N/A |
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| article pdf uploaded. | 19 June 2020 15:50 CEST | Updated version of record | https://www.mdpi.com/2199-8531/6/2/44/pdf |
| article xml uploaded. | 19 June 2020 15:50 CEST | Update | https://www.mdpi.com/2199-8531/6/2/44/xml |
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