| article html file updated | 7 February 2020 20:05 CET | Update | https://www.mdpi.com/1424-8220/17/1/3 |
| article html file updated | 22 September 2019 14:01 CEST | Update | - |
| article html file updated | 4 May 2019 18:16 CEST | Update | - |
| article html file updated | 8 February 2017 22:50 CET | Update | - |
| article html file updated | 22 December 2016 08:37 CET | Original file | - |
| article xml uploaded. | 22 December 2016 08:35 CET | Update | https://www.mdpi.com/1424-8220/17/1/3/xml |
| article xml uploaded. | 22 December 2016 08:35 CET | Original file | - |
| article pdf uploaded. | 22 December 2016 08:35 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/3/pdf |
