| article html file updated | 7 February 2020 22:25 CET | Update | https://www.mdpi.com/1424-8220/17/2/261 |
| article html file updated | 23 September 2019 02:37 CEST | Update | - |
| article html file updated | 4 May 2019 13:12 CEST | Update | - |
| article html file updated | 2 March 2017 11:12 CET | Update | - |
| article html file updated | 9 February 2017 13:00 CET | Original file | - |
| article xml uploaded. | 9 February 2017 12:59 CET | Update | https://www.mdpi.com/1424-8220/17/2/261/xml |
| article xml uploaded. | 9 February 2017 12:59 CET | Original file | - |
| article pdf uploaded. | 9 February 2017 12:59 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/2/261/pdf |
| article pdf uploaded. | 28 January 2017 10:15 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/261/pdf-vor |
