| article html file updated | 8 February 2020 04:15 CET | Update | https://www.mdpi.com/2079-4991/7/4/91 |
| article html file updated | 24 September 2019 11:34 CEST | Update | - |
| article html file updated | 4 May 2019 00:59 CEST | Update | - |
| article html file updated | 24 April 2017 13:00 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 12:59 CEST | Original file | https://www.mdpi.com/2079-4991/7/4/91/xml |
| article pdf uploaded. | 24 April 2017 12:59 CEST | Version of Record | https://www.mdpi.com/2079-4991/7/4/91/pdf |
