| article html file updated | 7 February 2020 20:24 CET | Update | https://www.mdpi.com/1424-8220/17/1/47 |
| article html file updated | 22 September 2019 15:43 CEST | Update | - |
| article html file updated | 4 May 2019 17:37 CEST | Update | - |
| article html file updated | 8 February 2017 08:59 CET | Update | - |
| article html file updated | 28 December 2016 02:29 CET | Original file | - |
| article xml uploaded. | 28 December 2016 02:28 CET | Update | https://www.mdpi.com/1424-8220/17/1/47/xml |
| article xml uploaded. | 28 December 2016 02:28 CET | Original file | - |
| article pdf uploaded. | 28 December 2016 02:28 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/47/pdf |
