| article html file updated | 8 February 2020 04:09 CET | Update | https://www.mdpi.com/2079-4991/7/4/89 |
| article html file updated | 24 September 2019 11:04 CEST | Update | - |
| article html file updated | 4 May 2019 01:08 CEST | Update | - |
| article html file updated | 22 April 2017 09:39 CEST | Original file | - |
| article xml uploaded. | 22 April 2017 09:38 CEST | Original file | https://www.mdpi.com/2079-4991/7/4/89/xml |
| article pdf uploaded. | 22 April 2017 09:38 CEST | Version of Record | https://www.mdpi.com/2079-4991/7/4/89/pdf |
