| article html file updated | 31 August 2025 11:32 CEST | Update | https://www.mdpi.com/2227-9717/8/2/220 |
| article html file updated | 20 July 2022 20:03 CEST | Update | - |
| article html file updated | 6 March 2020 21:32 CET | Update | - |
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| article pdf uploaded. | 13 February 2020 11:49 CET | Version of Record | https://www.mdpi.com/2227-9717/8/2/220/pdf |
| article xml uploaded. | 13 February 2020 11:49 CET | Update | https://www.mdpi.com/2227-9717/8/2/220/xml |
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