| article html file updated | 7 February 2020 19:26 CET | Update | https://www.mdpi.com/2075-4701/6/12/315 |
| article html file updated | 22 September 2019 10:29 CEST | Update | - |
| article html file updated | 4 May 2019 19:37 CEST | Update | - |
| article html file updated | 28 December 2016 11:24 CET | Update | - |
| article html file updated | 10 December 2016 11:16 CET | Original file | - |
| article xml uploaded. | 10 December 2016 11:14 CET | Update | https://www.mdpi.com/2075-4701/6/12/315/xml |
| article xml uploaded. | 10 December 2016 11:14 CET | Original file | - |
| article pdf uploaded. | 10 December 2016 11:14 CET | Version of Record | https://www.mdpi.com/2075-4701/6/12/315/pdf |
