| article html file updated | 7 February 2020 01:56 CET | Update | https://www.mdpi.com/2079-4991/5/4/2203 |
| article html file updated | 6 May 2019 05:36 CEST | Update | - |
| article html file updated | 26 March 2019 16:00 CET | Update | - |
| article html file updated | 24 February 2017 10:47 CET | Original file | - |
| article pdf uploaded. | 8 December 2015 13:29 CET | Version of Record | https://www.mdpi.com/2079-4991/5/4/2203/pdf |
| article xml uploaded. | 8 December 2015 13:29 CET | Original file | https://www.mdpi.com/2079-4991/5/4/2203/xml |
