| article html file updated | 31 August 2025 07:05 CEST | Update | https://www.mdpi.com/2227-9717/8/1/13 |
| article html file updated | 19 July 2022 21:11 CEST | Update | N/A |
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| article pdf uploaded. | 20 December 2019 12:23 CET | Version of Record | https://www.mdpi.com/2227-9717/8/1/13/pdf |
| article xml uploaded. | 20 December 2019 12:23 CET | Update | https://www.mdpi.com/2227-9717/8/1/13/xml |
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