| article html file updated | 14 August 2026 13:46 CEST | Update | https://www.mdpi.com/2079-4991/7/4/81 |
| article html file updated | 8 February 2020 03:16 CET | Update | N/A |
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| article pdf uploaded. | 11 April 2017 04:35 CEST | Updated version of record | https://www.mdpi.com/2079-4991/7/4/81/pdf |
| article pdf uploaded. | 10 April 2017 13:46 CEST | Version of Record | https://www.mdpi.com/2079-4991/7/4/81/pdf-vor |
