| article html file updated | 9 February 2020 03:26 CET | Update | https://www.mdpi.com/1996-1073/11/1/223 |
| article html file updated | 30 September 2019 00:17 CEST | Update | - |
| article html file updated | 2 May 2019 01:31 CEST | Update | - |
| article html file updated | 17 April 2019 23:49 CEST | Update | - |
| article html file updated | 28 March 2019 16:24 CET | Update | - |
| article html file updated | 1 February 2018 14:18 CET | Update | - |
| article html file updated | 17 January 2018 16:16 CET | Original file | - |
| article xml uploaded. | 17 January 2018 16:15 CET | Update | https://www.mdpi.com/1996-1073/11/1/223/xml |
| article xml uploaded. | 17 January 2018 16:15 CET | Original file | - |
| article pdf uploaded. | 17 January 2018 16:15 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/223/pdf |
