| article html file updated | 7 February 2020 23:00 CET | Update | https://www.mdpi.com/1424-8220/17/2/321 |
| article html file updated | 23 September 2019 05:48 CEST | Update | - |
| article html file updated | 4 May 2019 12:02 CEST | Update | - |
| article html file updated | 2 March 2017 11:27 CET | Update | - |
| article html file updated | 10 February 2017 12:50 CET | Original file | - |
| article xml uploaded. | 10 February 2017 12:49 CET | Update | https://www.mdpi.com/1424-8220/17/2/321/xml |
| article xml uploaded. | 10 February 2017 12:49 CET | Original file | - |
| article pdf uploaded. | 10 February 2017 12:49 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/2/321/pdf |
| article pdf uploaded. | 9 February 2017 12:43 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/321/pdf-vor |
