| article html file updated | 9 February 2020 05:24 CET | Update | https://www.mdpi.com/1996-1073/11/2/356 |
| article html file updated | 30 September 2019 12:02 CEST | Update | - |
| article html file updated | 1 May 2019 21:14 CEST | Update | - |
| article html file updated | 17 April 2019 20:08 CEST | Update | - |
| article html file updated | 28 March 2019 20:40 CET | Update | - |
| article html file updated | 14 March 2018 15:57 CET | Update | - |
| article html file updated | 3 February 2018 09:36 CET | Original file | - |
| article xml uploaded. | 3 February 2018 09:35 CET | Update | https://www.mdpi.com/1996-1073/11/2/356/xml |
| article xml uploaded. | 3 February 2018 09:35 CET | Original file | - |
| article pdf uploaded. | 3 February 2018 09:35 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/356/pdf |
