| article html file updated | 8 February 2020 18:45 CET | Update | https://www.mdpi.com/2076-328X/7/4/71 |
| article html file updated | 27 September 2019 20:07 CEST | Update | - |
| article html file updated | 2 May 2019 20:37 CEST | Update | - |
| article html file updated | 2 January 2018 11:41 CET | Update | - |
| article html file updated | 19 October 2017 23:12 CEST | Original file | - |
| article xml uploaded. | 18 October 2017 06:15 CEST | Original file | https://www.mdpi.com/2076-328X/7/4/71/xml |
| article pdf uploaded. | 18 October 2017 06:15 CEST | Version of Record | https://www.mdpi.com/2076-328X/7/4/71/pdf |
