| article html file updated | 7 February 2020 20:14 CET | Update | https://www.mdpi.com/1424-8220/17/1/22 |
| article html file updated | 22 September 2019 14:49 CEST | Update | - |
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| article xml uploaded. | 23 December 2016 13:06 CET | Original file | https://www.mdpi.com/1424-8220/17/1/22/xml |
| article pdf uploaded. | 23 December 2016 13:06 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/22/pdf |
