| article html file updated | 7 February 2020 10:32 CET | Update | https://www.mdpi.com/2073-4352/6/7/71 |
| article html file updated | 5 May 2019 12:15 CEST | Update | - |
| article html file updated | 27 March 2019 08:07 CET | Update | - |
| article html file updated | 28 July 2016 09:05 CEST | Update | - |
| article html file updated | 24 June 2016 10:39 CEST | Original file | - |
| article xml uploaded. | 24 June 2016 10:37 CEST | Original file | https://www.mdpi.com/2073-4352/6/7/71/xml |
| article pdf uploaded. | 24 June 2016 10:37 CEST | Version of Record | https://www.mdpi.com/2073-4352/6/7/71/pdf |
