| article html file updated | 8 February 2020 20:40 CET | Update | https://www.mdpi.com/2075-4663/5/4/86 |
| article html file updated | 28 September 2019 08:05 CEST | Update | - |
| article html file updated | 2 May 2019 16:10 CEST | Update | - |
| article html file updated | 2 January 2018 10:57 CET | Update | - |
| article html file updated | 8 November 2017 12:50 CET | Original file | - |
| article xml uploaded. | 8 November 2017 12:49 CET | Update | https://www.mdpi.com/2075-4663/5/4/86/xml |
| article xml uploaded. | 8 November 2017 12:49 CET | Original file | - |
| article pdf uploaded. | 8 November 2017 12:48 CET | Version of Record | https://www.mdpi.com/2075-4663/5/4/86/pdf |
