| article html file updated | 8 February 2020 18:32 CET | Update | https://www.mdpi.com/2079-9292/6/4/84 |
| article html file updated | 27 September 2019 18:53 CEST | Update | - |
| article html file updated | 2 May 2019 21:08 CEST | Update | - |
| article html file updated | 2 January 2018 11:25 CET | Update | - |
| article html file updated | 15 October 2017 10:53 CEST | Original file | - |
| article xml uploaded. | 15 October 2017 10:51 CEST | Update | https://www.mdpi.com/2079-9292/6/4/84/xml |
| article xml uploaded. | 15 October 2017 10:51 CEST | Original file | - |
| article pdf uploaded. | 15 October 2017 10:51 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/4/84/pdf |
