| article html file updated | 7 February 2020 20:30 CET | Update | https://www.mdpi.com/1424-8220/17/1/53 |
| article html file updated | 22 September 2019 16:20 CEST | Update | - |
| article html file updated | 4 May 2019 17:24 CEST | Update | - |
| article html file updated | 8 February 2017 09:10 CET | Update | - |
| article html file updated | 30 December 2016 09:57 CET | Update | - |
| article xml uploaded. | 30 December 2016 09:56 CET | Update | https://www.mdpi.com/1424-8220/17/1/53/xml |
| article pdf uploaded. | 30 December 2016 09:56 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/1/53/pdf |
| article html file updated | 29 December 2016 11:38 CET | Original file | - |
| article xml uploaded. | 29 December 2016 11:37 CET | Update | - |
| article xml uploaded. | 29 December 2016 11:37 CET | Original file | - |
| article pdf uploaded. | 29 December 2016 11:37 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/53/pdf-vor |
