| article html file updated | 7 February 2020 16:45 CET | Update | https://www.mdpi.com/2076-3905/5/4/26 |
| article html file updated | 5 May 2019 00:54 CEST | Update | - |
| article html file updated | 29 December 2016 11:50 CET | Update | - |
| article html file updated | 21 October 2016 09:03 CEST | Original file | - |
| article xml uploaded. | 21 October 2016 09:02 CEST | Original file | https://www.mdpi.com/2076-3905/5/4/26/xml |
| article pdf uploaded. | 21 October 2016 09:02 CEST | Version of Record | https://www.mdpi.com/2076-3905/5/4/26/pdf |
