| article html file updated | 14 August 2026 14:44 CEST | Update | https://www.mdpi.com/2075-4663/5/2/32 |
| article html file updated | 8 February 2020 06:47 CET | Update | N/A |
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| article pdf uploaded. | 20 July 2017 11:22 CEST | Updated version of record | https://www.mdpi.com/2075-4663/5/2/32/pdf |
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| article pdf uploaded. | 26 May 2017 11:08 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/2/32/pdf-vor |
