| article html file updated | 7 February 2020 09:42 CET | Update | https://new.mdpi.com/2073-4441/8/6/238 |
| article html file updated | 5 May 2019 13:50 CEST | Update | - |
| article html file updated | 27 March 2019 06:34 CET | Update | - |
| article html file updated | 29 June 2016 12:17 CEST | Update | - |
| article html file updated | 3 June 2016 10:25 CEST | Original file | - |
| article xml uploaded. | 3 June 2016 10:23 CEST | Update | https://new.mdpi.com/2073-4441/8/6/238/xml |
| article pdf uploaded. | 3 June 2016 10:23 CEST | Version of Record | https://new.mdpi.com/2073-4441/8/6/238/pdf |
