| article html file updated | 7 February 2020 16:25 CET | Update | https://www.mdpi.com/2075-163X/6/4/106 |
| article html file updated | 22 September 2019 03:00 CEST | Update | - |
| article html file updated | 5 May 2019 01:32 CEST | Update | - |
| article html file updated | 30 December 2016 06:00 CET | Update | - |
| article html file updated | 15 October 2016 11:37 CEST | Original file | - |
| article xml uploaded. | 15 October 2016 11:36 CEST | Update | https://www.mdpi.com/2075-163X/6/4/106/xml |
| article xml uploaded. | 15 October 2016 11:36 CEST | Original file | - |
| article pdf uploaded. | 15 October 2016 11:36 CEST | Version of Record | https://www.mdpi.com/2075-163X/6/4/106/pdf |
