| article html file updated | 8 February 2020 07:47 CET | Update | https://www.mdpi.com/2073-8994/9/6/84 |
| article html file updated | 25 September 2019 05:51 CEST | Update | - |
| article html file updated | 3 May 2019 18:24 CEST | Update | - |
| article html file updated | 28 June 2017 14:55 CEST | Update | - |
| article html file updated | 9 June 2017 05:46 CEST | Original file | - |
| article xml uploaded. | 9 June 2017 05:45 CEST | Original file | https://www.mdpi.com/2073-8994/9/6/84/xml |
| article pdf uploaded. | 9 June 2017 05:45 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/6/84/pdf |
| article pdf uploaded. | 8 June 2017 12:02 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/6/84/pdf-vor |
