| article html file updated | 8 February 2020 07:12 CET | Update | https://www.mdpi.com/2073-4441/9/6/390 |
| article html file updated | 25 September 2019 02:53 CEST | Update | - |
| article html file updated | 3 May 2019 19:29 CEST | Update | - |
| article html file updated | 29 June 2017 12:10 CEST | Update | - |
| article html file updated | 1 June 2017 12:02 CEST | Original file | - |
| article xml uploaded. | 1 June 2017 12:01 CEST | Update | https://www.mdpi.com/2073-4441/9/6/390/xml |
| article pdf uploaded. | 1 June 2017 12:01 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/390/pdf |
