| article html file updated | 8 February 2020 23:19 CET | Update | https://www.mdpi.com/2073-8994/9/12/303 |
| article html file updated | 29 September 2019 00:51 CEST | Update | - |
| article html file updated | 2 May 2019 10:14 CEST | Update | - |
| article html file updated | 18 April 2019 07:53 CEST | Update | - |
| article html file updated | 2 January 2018 17:37 CET | Update | - |
| article html file updated | 6 December 2017 12:05 CET | Original file | - |
| article xml uploaded. | 6 December 2017 12:04 CET | Update | https://www.mdpi.com/2073-8994/9/12/303/xml |
| article xml uploaded. | 6 December 2017 12:04 CET | Original file | - |
| article pdf uploaded. | 6 December 2017 12:04 CET | Version of Record | https://www.mdpi.com/2073-8994/9/12/303/pdf |
