| article html file updated | 8 February 2020 15:04 CET | Update | https://www.mdpi.com/1424-8220/17/9/2001 |
| article html file updated | 26 September 2019 21:24 CEST | Update | - |
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| article html file updated | 30 September 2017 14:42 CEST | Update | - |
| article html file updated | 1 September 2017 13:47 CEST | Original file | - |
| article xml uploaded. | 1 September 2017 13:46 CEST | Original file | https://www.mdpi.com/1424-8220/17/9/2001/xml |
| article pdf uploaded. | 1 September 2017 13:46 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/2001/pdf |
