| article html file updated | 7 February 2020 23:18 CET | Update | https://www.mdpi.com/2073-4441/9/2/116 |
| article html file updated | 23 September 2019 07:26 CEST | Update | - |
| article html file updated | 4 May 2019 11:25 CEST | Update | - |
| article html file updated | 1 March 2017 08:07 CET | Update | - |
| article html file updated | 20 February 2017 03:03 CET | Original file | - |
| article xml uploaded. | 20 February 2017 03:02 CET | Original file | https://www.mdpi.com/2073-4441/9/2/116/xml |
| article pdf uploaded. | 20 February 2017 03:02 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/2/116/pdf |
| article pdf uploaded. | 13 February 2017 16:19 CET | Version of Record | https://www.mdpi.com/2073-4441/9/2/116/pdf-vor |
