| article html file updated | 7 February 2020 22:26 CET | Update | https://www.mdpi.com/1424-8220/17/2/256 |
| article html file updated | 4 May 2019 13:11 CEST | Update | N/A |
| article html file updated | 2 March 2017 11:10 CET | Update | N/A |
| article html file updated | 10 February 2017 12:58 CET | Original file | N/A |
| article xml uploaded. | 10 February 2017 12:57 CET | Original file | https://www.mdpi.com/1424-8220/17/2/256/xml |
| article pdf uploaded. | 10 February 2017 12:57 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/2/256/pdf |
| article pdf uploaded. | 29 January 2017 02:15 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/256/pdf-vor |
