| article html file updated | 8 February 2020 01:14 CET | Update | https://www.mdpi.com/1424-8220/17/3/557 |
| article html file updated | 23 September 2019 18:30 CEST | Update | - |
| article html file updated | 4 May 2019 07:14 CEST | Update | - |
| article html file updated | 31 March 2017 10:09 CEST | Update | - |
| article html file updated | 10 March 2017 13:58 CET | Original file | - |
| article xml uploaded. | 10 March 2017 13:57 CET | Original file | https://www.mdpi.com/1424-8220/17/3/557/xml |
| article pdf uploaded. | 10 March 2017 13:57 CET | Version of Record | https://www.mdpi.com/1424-8220/17/3/557/pdf |
