| article html file updated | 7 February 2020 22:22 CET | Update | https://www.mdpi.com/1424-8220/17/2/254 |
| article html file updated | 4 May 2019 13:18 CEST | Update | - |
| article html file updated | 2 March 2017 11:09 CET | Update | - |
| article html file updated | 4 February 2017 11:50 CET | Original file | - |
| article xml uploaded. | 4 February 2017 11:49 CET | Original file | https://www.mdpi.com/1424-8220/17/2/254/xml |
| article pdf uploaded. | 4 February 2017 11:49 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/2/254/pdf |
| article pdf uploaded. | 27 January 2017 16:28 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/254/pdf-vor |
