| article html file updated | 8 February 2020 20:05 CET | Update | https://www.mdpi.com/2075-471X/6/4/24 |
| article html file updated | 28 September 2019 04:13 CEST | Update | - |
| article html file updated | 2 May 2019 17:30 CEST | Update | - |
| article html file updated | 2 November 2017 10:30 CET | Original file | - |
| article xml uploaded. | 2 November 2017 10:29 CET | Original file | https://www.mdpi.com/2075-471X/6/4/24/xml |
| article pdf uploaded. | 2 November 2017 10:29 CET | Updated version of record | https://www.mdpi.com/2075-471X/6/4/24/pdf |
| article pdf uploaded. | 1 November 2017 12:40 CET | Version of Record | https://www.mdpi.com/2075-471X/6/4/24/pdf-vor |
