| article html file updated | 7 February 2020 11:58 CET | Update | https://www.mdpi.com/2073-8994/8/7/67 |
| article html file updated | 5 May 2019 09:40 CEST | Update | - |
| article html file updated | 27 March 2019 10:48 CET | Update | - |
| article html file updated | 28 July 2016 09:43 CEST | Update | - |
| article html file updated | 20 July 2016 15:22 CEST | Original file | - |
| article xml uploaded. | 20 July 2016 15:20 CEST | Original file | https://www.mdpi.com/2073-8994/8/7/67/xml |
| article pdf uploaded. | 20 July 2016 15:20 CEST | Version of Record | https://www.mdpi.com/2073-8994/8/7/67/pdf |
