| article html file updated | 7 February 2020 11:03 CET | Update | https://www.mdpi.com/2073-4352/6/7/74 |
| article html file updated | 5 May 2019 11:20 CEST | Update | - |
| article html file updated | 27 March 2019 09:04 CET | Update | - |
| article html file updated | 28 July 2016 09:09 CEST | Update | - |
| article html file updated | 30 June 2016 12:04 CEST | Original file | - |
| article xml uploaded. | 30 June 2016 12:02 CEST | Update | https://www.mdpi.com/2073-4352/6/7/74/xml |
| article pdf uploaded. | 30 June 2016 12:02 CEST | Version of Record | https://www.mdpi.com/2073-4352/6/7/74/pdf |
