| article html file updated | 7 February 2020 13:34 CET | Update | https://www.mdpi.com/2077-1444/7/8/109 |
| article html file updated | 5 May 2019 06:41 CEST | Update | - |
| article html file updated | 27 March 2019 14:07 CET | Update | - |
| article html file updated | 26 August 2016 11:30 CEST | Update | - |
| article html file updated | 19 August 2016 11:27 CEST | Original file | - |
| article xml uploaded. | 19 August 2016 11:25 CEST | Original file | https://www.mdpi.com/2077-1444/7/8/109/xml |
| article pdf uploaded. | 19 August 2016 11:25 CEST | Version of Record | https://www.mdpi.com/2077-1444/7/8/109/pdf |
