| article html file updated | 7 February 2020 22:11 CET | Update | https://www.mdpi.com/1424-8220/17/2/203 |
| article html file updated | 23 September 2019 01:19 CEST | Update | - |
| article html file updated | 4 May 2019 13:40 CEST | Update | - |
| article html file updated | 2 March 2017 11:00 CET | Update | - |
| article html file updated | 25 January 2017 05:34 CET | Original file | - |
| article xml uploaded. | 25 January 2017 05:33 CET | Original file | https://www.mdpi.com/1424-8220/17/2/203/xml |
| article pdf uploaded. | 25 January 2017 05:33 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/203/pdf |
