| article html file updated | 8 February 2020 23:32 CET | Update | https://www.mdpi.com/2077-1444/8/12/268 |
| article html file updated | 2 May 2019 09:48 CEST | Update | - |
| article html file updated | 18 April 2019 07:28 CEST | Update | - |
| article html file updated | 2 January 2018 15:39 CET | Update | - |
| article html file updated | 8 December 2017 15:36 CET | Original file | - |
| article xml uploaded. | 8 December 2017 15:35 CET | Original file | https://www.mdpi.com/2077-1444/8/12/268/xml |
| article pdf uploaded. | 8 December 2017 15:35 CET | Version of Record | https://www.mdpi.com/2077-1444/8/12/268/pdf |
