| article html file updated | 7 February 2020 10:35 CET | Update | https://www.mdpi.com/2073-4441/8/6/266 |
| article html file updated | 5 May 2019 12:09 CEST | Update | - |
| article html file updated | 27 March 2019 08:13 CET | Update | - |
| article html file updated | 29 June 2016 12:28 CEST | Update | - |
| article html file updated | 22 June 2016 15:39 CEST | Original file | - |
| article xml uploaded. | 22 June 2016 15:37 CEST | Original file | https://www.mdpi.com/2073-4441/8/6/266/xml |
| article pdf uploaded. | 22 June 2016 15:37 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/6/266/pdf |
