| article html file updated | 7 February 2020 09:33 CET | Update | https://www.mdpi.com/2073-8994/8/6/41 |
| article html file updated | 5 May 2019 14:07 CEST | Update | - |
| article html file updated | 27 March 2019 06:16 CET | Update | - |
| article html file updated | 1 July 2016 10:19 CEST | Update | - |
| article html file updated | 31 May 2016 14:04 CEST | Original file | - |
| article xml uploaded. | 31 May 2016 14:03 CEST | Update | https://www.mdpi.com/2073-8994/8/6/41/xml |
| article pdf uploaded. | 31 May 2016 14:03 CEST | Version of Record | https://www.mdpi.com/2073-8994/8/6/41/pdf |
