| article html file updated | 7 February 2020 20:17 CET | Update | https://www.mdpi.com/1996-1073/10/1/18 |
| article html file updated | 22 September 2019 15:04 CEST | Update | - |
| article html file updated | 4 May 2019 17:52 CEST | Update | - |
| article html file updated | 7 February 2017 09:27 CET | Update | - |
| article html file updated | 24 December 2016 11:33 CET | Original file | - |
| article xml uploaded. | 24 December 2016 11:32 CET | Update | https://www.mdpi.com/1996-1073/10/1/18/xml |
| article xml uploaded. | 24 December 2016 11:32 CET | Original file | - |
| article pdf uploaded. | 24 December 2016 11:32 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/18/pdf |
