| article html file updated | 8 February 2020 01:43 CET | Update | https://www.mdpi.com/1424-8220/17/3/620 |
| article html file updated | 23 September 2019 21:17 CEST | Update | - |
| article html file updated | 4 May 2019 06:08 CEST | Update | - |
| article html file updated | 31 March 2017 10:22 CEST | Update | - |
| article html file updated | 18 March 2017 10:05 CET | Original file | - |
| article xml uploaded. | 18 March 2017 10:03 CET | Original file | https://www.mdpi.com/1424-8220/17/3/620/xml |
| article pdf uploaded. | 18 March 2017 10:03 CET | Version of Record | https://www.mdpi.com/1424-8220/17/3/620/pdf |
