| article html file updated | 9 February 2020 01:33 CET | Update | https://www.mdpi.com/2077-1444/9/1/8 |
| article html file updated | 2 May 2019 05:22 CEST | Update | - |
| article html file updated | 18 April 2019 03:24 CEST | Update | - |
| article html file updated | 28 March 2019 12:02 CET | Update | - |
| article html file updated | 1 February 2018 07:46 CET | Update | - |
| article html file updated | 30 December 2017 09:44 CET | Original file | - |
| article xml uploaded. | 30 December 2017 09:43 CET | Original file | https://www.mdpi.com/2077-1444/9/1/8/xml |
| article pdf uploaded. | 30 December 2017 09:43 CET | Updated version of record | https://www.mdpi.com/2077-1444/9/1/8/pdf |
| article pdf uploaded. | 29 December 2017 16:08 CET | Version of Record | https://www.mdpi.com/2077-1444/9/1/8/pdf-vor |
