| article html file updated | 9 February 2020 00:52 CET | Update | https://www.mdpi.com/1996-1073/11/1/16 |
| article html file updated | 29 September 2019 09:49 CEST | Update | - |
| article html file updated | 2 May 2019 06:52 CEST | Update | - |
| article html file updated | 18 April 2019 04:46 CEST | Update | - |
| article html file updated | 28 March 2019 10:20 CET | Update | - |
| article html file updated | 1 February 2018 09:22 CET | Update | - |
| article html file updated | 22 December 2017 08:49 CET | Original file | - |
| article xml uploaded. | 22 December 2017 08:48 CET | Original file | https://www.mdpi.com/1996-1073/11/1/16/xml |
| article pdf uploaded. | 22 December 2017 08:48 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/16/pdf |
