| article html file updated | 7 February 2020 22:25 CET | Update | https://www.mdpi.com/1424-8220/17/2/258 |
| article html file updated | 23 September 2019 02:38 CEST | Update | N/A |
| article html file updated | 4 May 2019 13:12 CEST | Update | N/A |
| article html file updated | 2 March 2017 11:10 CET | Update | N/A |
| article html file updated | 10 February 2017 12:57 CET | Original file | N/A |
| article xml uploaded. | 10 February 2017 12:56 CET | Original file | https://www.mdpi.com/1424-8220/17/2/258/xml |
| article pdf uploaded. | 10 February 2017 12:56 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/2/258/pdf |
| article pdf uploaded. | 28 January 2017 10:24 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/258/pdf-vor |
