| article html file updated | 9 February 2020 03:31 CET | Update | https://www.mdpi.com/1996-1073/11/1/228 |
| article html file updated | 30 September 2019 00:52 CEST | Update | - |
| article html file updated | 2 May 2019 01:19 CEST | Update | - |
| article html file updated | 17 April 2019 23:38 CEST | Update | - |
| article html file updated | 28 March 2019 16:37 CET | Update | - |
| article html file updated | 1 February 2018 14:20 CET | Update | - |
| article html file updated | 18 January 2018 15:54 CET | Original file | - |
| article xml uploaded. | 18 January 2018 15:52 CET | Original file | https://www.mdpi.com/1996-1073/11/1/228/xml |
| article pdf uploaded. | 18 January 2018 15:52 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/228/pdf |
