| article html file updated | 8 February 2020 18:53 CET | Update | https://www.mdpi.com/2076-328X/7/4/67 |
| article html file updated | 27 September 2019 20:56 CEST | Update | - |
| article html file updated | 2 May 2019 20:18 CEST | Update | - |
| article html file updated | 2 January 2018 11:41 CET | Update | - |
| article html file updated | 19 October 2017 12:42 CEST | Original file | - |
| article xml uploaded. | 19 October 2017 12:41 CEST | Original file | https://www.mdpi.com/2076-328X/7/4/67/xml |
| article pdf uploaded. | 19 October 2017 12:41 CEST | Version of Record | https://www.mdpi.com/2076-328X/7/4/67/pdf |
