| article html file updated | 7 February 2020 19:31 CET | Update | https://www.mdpi.com/1424-8220/16/12/2109 |
| article html file updated | 22 September 2019 10:59 CEST | Update | - |
| article html file updated | 4 May 2019 19:26 CEST | Update | - |
| article html file updated | 27 December 2016 13:04 CET | Update | - |
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| article xml uploaded. | 13 December 2016 09:47 CET | Original file | https://www.mdpi.com/1424-8220/16/12/2109/xml |
| article pdf uploaded. | 13 December 2016 09:47 CET | Version of Record | https://www.mdpi.com/1424-8220/16/12/2109/pdf |
