| article html file updated | 30 August 2025 00:09 CEST | Update | https://www.mdpi.com/1424-8220/17/1/81 |
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| article pdf uploaded. | 4 January 2017 10:10 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/1/81/pdf |
| article pdf uploaded. | 1 January 2017 09:10 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/81/pdf-vor |
