| article html file updated | 8 February 2020 12:22 CET | Update | https://www.mdpi.com/2073-8994/9/8/137 |
| article html file updated | 26 September 2019 06:12 CEST | Update | - |
| article html file updated | 3 May 2019 09:21 CEST | Update | - |
| article html file updated | 27 March 2019 18:22 CET | Update | - |
| article html file updated | 30 August 2017 09:50 CEST | Update | - |
| article pdf uploaded. | 3 August 2017 06:03 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/8/137/pdf |
| article html file updated | 30 July 2017 13:50 CEST | Original file | - |
| article xml uploaded. | 30 July 2017 13:49 CEST | Update | https://www.mdpi.com/2073-8994/9/8/137/xml |
| article pdf uploaded. | 30 July 2017 13:49 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/8/137/pdf-vor |
