| article html file updated | 7 February 2020 19:21 CET | Update | https://www.mdpi.com/2075-4701/6/12/312 |
| article html file updated | 22 September 2019 10:02 CEST | Update | - |
| article html file updated | 4 May 2019 19:48 CEST | Update | - |
| article html file updated | 28 December 2016 11:23 CET | Update | - |
| article html file updated | 9 December 2016 11:19 CET | Original file | - |
| article xml uploaded. | 9 December 2016 11:18 CET | Original file | https://www.mdpi.com/2075-4701/6/12/312/xml |
| article pdf uploaded. | 9 December 2016 11:18 CET | Version of Record | https://www.mdpi.com/2075-4701/6/12/312/pdf |
