| article html file updated | 7 February 2020 13:52 CET | Update | https://www.mdpi.com/2077-1444/7/9/111 |
| article html file updated | 5 May 2019 06:08 CEST | Update | - |
| article html file updated | 27 March 2019 14:44 CET | Update | - |
| article html file updated | 27 September 2016 11:25 CEST | Update | - |
| article html file updated | 25 August 2016 09:01 CEST | Original file | - |
| article xml uploaded. | 25 August 2016 09:00 CEST | Original file | https://www.mdpi.com/2077-1444/7/9/111/xml |
| article pdf uploaded. | 25 August 2016 09:00 CEST | Version of Record | https://www.mdpi.com/2077-1444/7/9/111/pdf |
