| article html file updated | 7 February 2020 11:23 CET | Update | https://www.mdpi.com/2073-8994/8/7/60 |
| article html file updated | 5 May 2019 10:43 CEST | Update | - |
| article html file updated | 27 March 2019 09:42 CET | Update | - |
| article html file updated | 28 July 2016 09:14 CEST | Update | - |
| article html file updated | 8 July 2016 12:19 CEST | Original file | - |
| article xml uploaded. | 8 July 2016 12:18 CEST | Update | https://www.mdpi.com/2073-8994/8/7/60/xml |
| article pdf uploaded. | 8 July 2016 12:18 CEST | Version of Record | https://www.mdpi.com/2073-8994/8/7/60/pdf |
