| article html file updated | 7 February 2020 22:32 CET | Update | https://www.mdpi.com/1424-8220/17/2/280 |
| article html file updated | 23 September 2019 03:10 CEST | Update | - |
| article html file updated | 4 May 2019 12:59 CEST | Update | - |
| article html file updated | 2 March 2017 11:17 CET | Update | - |
| article html file updated | 14 February 2017 07:50 CET | Original file | - |
| article xml uploaded. | 14 February 2017 07:48 CET | Original file | https://www.mdpi.com/1424-8220/17/2/280/xml |
| article pdf uploaded. | 14 February 2017 07:48 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/2/280/pdf |
| article pdf uploaded. | 31 January 2017 11:20 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/280/pdf-vor |
