| article html file updated | 14 August 2026 19:34 CEST | Update | https://www.mdpi.com/2079-9721/5/4/32 |
| article html file updated | 8 February 2020 22:22 CET | Update | N/A |
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| article pdf uploaded. | 27 November 2017 16:51 CET | Updated version of record | https://www.mdpi.com/2079-9721/5/4/32/pdf |
| article pdf uploaded. | 27 November 2017 11:57 CET | Version of Record | N/A |
