| article html file updated | 14 August 2026 13:48 CEST | Update | https://www.mdpi.com/2076-0787/6/2/22 |
| article html file updated | 8 February 2020 03:26 CET | Update | N/A |
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| article pdf uploaded. | 13 April 2017 08:25 CEST | Updated version of record | https://www.mdpi.com/2076-0787/6/2/22/pdf |
| article pdf uploaded. | 12 April 2017 12:26 CEST | Version of Record | https://www.mdpi.com/2076-0787/6/2/22/pdf-vor |
