| article html file updated | 9 February 2020 02:54 CET | Update | https://www.mdpi.com/1424-8220/18/1/208 |
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| article xml uploaded. | 12 January 2018 16:51 CET | Original file | https://www.mdpi.com/1424-8220/18/1/208/xml |
| article pdf uploaded. | 12 January 2018 16:51 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/208/pdf |