| article html file updated | 7 February 2020 18:55 CET | Update | https://www.mdpi.com/2073-8994/8/12/144 |
| article html file updated | 4 May 2019 20:41 CEST | Update | - |
| article html file updated | 27 December 2016 11:29 CET | Update | - |
| article html file updated | 1 December 2016 15:23 CET | Original file | - |
| article xml uploaded. | 1 December 2016 15:22 CET | Update | https://www.mdpi.com/2073-8994/8/12/144/xml |
| article xml uploaded. | 1 December 2016 15:22 CET | Original file | - |
| article pdf uploaded. | 1 December 2016 15:22 CET | Version of Record | https://www.mdpi.com/2073-8994/8/12/144/pdf |
