| article html file updated | 29 August 2025 22:45 CEST | Update | https://www.mdpi.com/2079-9284/3/1/8 |
| article html file updated | 16 July 2022 01:50 CEST | Update | N/A |
| article html file updated | 7 February 2020 05:00 CET | Update | N/A |
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| article pdf uploaded. | 25 February 2016 11:35 CET | Version of Record | https://www.mdpi.com/2079-9284/3/1/8/pdf |
| article xml uploaded. | 25 February 2016 11:35 CET | Original file | https://www.mdpi.com/2079-9284/3/1/8/xml |
