| article html file updated | 8 February 2020 00:49 CET | Update | https://www.mdpi.com/1424-8220/17/3/521 |
| article html file updated | 23 September 2019 16:12 CEST | Update | - |
| article html file updated | 4 May 2019 08:07 CEST | Update | - |
| article html file updated | 31 March 2017 10:02 CEST | Update | - |
| article html file updated | 5 March 2017 10:51 CET | Original file | - |
| article xml uploaded. | 5 March 2017 10:49 CET | Update | https://www.mdpi.com/1424-8220/17/3/521/xml |
| article pdf uploaded. | 5 March 2017 10:49 CET | Version of Record | https://www.mdpi.com/1424-8220/17/3/521/pdf |
