| article html file updated | 7 February 2020 09:52 CET | Update | https://www.mdpi.com/2072-6643/8/6/337 |
| article html file updated | 5 May 2019 13:30 CEST | Update | - |
| article html file updated | 27 March 2019 06:56 CET | Update | - |
| article html file updated | 29 June 2016 03:07 CEST | Update | - |
| article html file updated | 7 June 2016 14:38 CEST | Original file | - |
| article xml uploaded. | 7 June 2016 14:37 CEST | Original file | https://www.mdpi.com/2072-6643/8/6/337/xml |
| article pdf uploaded. | 7 June 2016 14:37 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/6/337/pdf |
