| article html file updated | 7 February 2020 14:34 CET | Update | https://www.mdpi.com/2075-4701/6/9/216 |
| article html file updated | 5 May 2019 04:51 CEST | Update | - |
| article html file updated | 27 September 2016 10:08 CEST | Update | - |
| article html file updated | 7 September 2016 11:00 CEST | Original file | - |
| article xml uploaded. | 7 September 2016 10:59 CEST | Update | https://www.mdpi.com/2075-4701/6/9/216/xml |
| article xml uploaded. | 7 September 2016 10:59 CEST | Update | - |
| article xml uploaded. | 7 September 2016 10:59 CEST | Original file | - |
| article pdf uploaded. | 7 September 2016 10:59 CEST | Version of Record | https://www.mdpi.com/2075-4701/6/9/216/pdf |
