| article html file updated | 9 February 2020 03:33 CET | Update | https://www.mdpi.com/2077-1444/9/1/28 |
| article html file updated | 2 May 2019 01:15 CEST | Update | - |
| article html file updated | 17 April 2019 23:35 CEST | Update | - |
| article html file updated | 28 March 2019 16:41 CET | Update | - |
| article html file updated | 1 February 2018 07:47 CET | Update | - |
| article html file updated | 18 January 2018 16:48 CET | Original file | - |
| article xml uploaded. | 18 January 2018 16:47 CET | Original file | https://www.mdpi.com/2077-1444/9/1/28/xml |
| article pdf uploaded. | 18 January 2018 16:47 CET | Version of Record | https://www.mdpi.com/2077-1444/9/1/28/pdf |
