| article html file updated | 8 February 2020 06:51 CET | Update | https://www.mdpi.com/2073-4441/9/6/377 |
| article html file updated | 25 September 2019 01:08 CEST | Update | - |
| article html file updated | 3 May 2019 20:08 CEST | Update | - |
| article html file updated | 29 June 2017 12:08 CEST | Update | - |
| article html file updated | 27 May 2017 08:44 CEST | Original file | - |
| article xml uploaded. | 27 May 2017 08:43 CEST | Original file | https://www.mdpi.com/2073-4441/9/6/377/xml |
| article pdf uploaded. | 27 May 2017 08:43 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/377/pdf |
