| article html file updated | 7 February 2020 12:53 CET | Update | https://www.mdpi.com/2077-1444/7/8/99 |
| article html file updated | 5 May 2019 07:54 CEST | Update | - |
| article html file updated | 27 March 2019 12:45 CET | Update | - |
| article html file updated | 26 August 2016 11:27 CEST | Update | - |
| article html file updated | 5 August 2016 10:53 CEST | Original file | - |
| article xml uploaded. | 5 August 2016 10:51 CEST | Original file | https://www.mdpi.com/2077-1444/7/8/99/xml |
| article pdf uploaded. | 5 August 2016 10:51 CEST | Version of Record | https://www.mdpi.com/2077-1444/7/8/99/pdf |
