| article html file updated | 8 February 2020 07:48 CET | Update | https://www.mdpi.com/2073-4441/9/6/411 |
| article html file updated | 25 September 2019 05:59 CEST | Update | - |
| article html file updated | 3 May 2019 18:21 CEST | Update | - |
| article html file updated | 29 June 2017 12:14 CEST | Update | - |
| article html file updated | 9 June 2017 11:26 CEST | Original file | - |
| article xml uploaded. | 9 June 2017 11:24 CEST | Update | https://www.mdpi.com/2073-4441/9/6/411/xml |
| article pdf uploaded. | 9 June 2017 11:24 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/6/411/pdf |
| article pdf uploaded. | 8 June 2017 12:43 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/411/pdf-vor |
