| article html file updated | 7 February 2020 20:01 CET | Update | https://www.mdpi.com/2073-4344/6/12/215 |
| article html file updated | 22 September 2019 13:41 CEST | Update | - |
| article html file updated | 4 May 2019 18:23 CEST | Update | - |
| article html file updated | 27 December 2016 11:39 CET | Update | - |
| article html file updated | 21 December 2016 06:50 CET | Original file | - |
| article xml uploaded. | 21 December 2016 06:48 CET | Update | https://www.mdpi.com/2073-4344/6/12/215/xml |
| article xml uploaded. | 21 December 2016 06:48 CET | Original file | - |
| article pdf uploaded. | 21 December 2016 06:48 CET | Version of Record | https://www.mdpi.com/2073-4344/6/12/215/pdf |
