| article html file updated | 8 February 2020 15:51 CET | Update | https://www.mdpi.com/2077-0383/6/9/84 |
| article html file updated | 27 September 2019 01:37 CEST | Update | - |
| article html file updated | 3 May 2019 02:36 CEST | Update | - |
| article html file updated | 30 September 2017 10:31 CEST | Update | - |
| article html file updated | 11 September 2017 11:36 CEST | Original file | - |
| article xml uploaded. | 11 September 2017 11:35 CEST | Original file | https://www.mdpi.com/2077-0383/6/9/84/xml |
| article pdf uploaded. | 11 September 2017 11:35 CEST | Version of Record | https://www.mdpi.com/2077-0383/6/9/84/pdf |
